diff --git a/.dockerignore b/.dockerignore
index ae4768a..31fcb38 100644
--- a/.dockerignore
+++ b/.dockerignore
@@ -1,16 +1,4 @@
-# Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+
 
 .github
 docs
diff --git a/.env b/.env
index 76152bf..f18bb38 100644
--- a/.env
+++ b/.env
@@ -1,16 +1,4 @@
-# Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+
 
 # Images
 IMAGE_VERSION=1.3.1
diff --git a/.gitattributes b/.gitattributes
index e3919f3..cf9b66d 100644
--- a/.gitattributes
+++ b/.gitattributes
@@ -1,16 +1,4 @@
-# Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+
 
 * text=auto
 
diff --git a/.github/component_owners.yml b/.github/component_owners.yml
index 4a8e9b4..615e801 100644
--- a/.github/component_owners.yml
+++ b/.github/component_owners.yml
@@ -1,3 +1,5 @@
+# Copyright The OpenTelemetry Authors
+# SPDX-License-Identifier: Apache-2.0
 # this file is used by .github/workflows/assign-reviewers.yml
 components:
   src/adservice:
diff --git a/.github/dependabot.yml b/.github/dependabot.yml
index 2ac5ee6..dc3fd6c 100644
--- a/.github/dependabot.yml
+++ b/.github/dependabot.yml
@@ -1,3 +1,5 @@
+# Copyright The OpenTelemetry Authors
+# SPDX-License-Identifier: Apache-2.0
 version: 2
 updates:
   - package-ecosystem: "github-actions"
diff --git a/.github/workflows/assign-reviewers.yml b/.github/workflows/assign-reviewers.yml
index 763b30b..3dfd8bc 100644
--- a/.github/workflows/assign-reviewers.yml
+++ b/.github/workflows/assign-reviewers.yml
@@ -1,3 +1,5 @@
+# Copyright The OpenTelemetry Authors
+# SPDX-License-Identifier: Apache-2.0
 # assigns reviewers to pull requests in a similar way as CODEOWNERS, but doesn't require reviewers
 # to have write access to the repository
 # see .github/component_owners.yaml for the list of components and their owners
diff --git a/.github/workflows/checks.yml b/.github/workflows/checks.yml
index 08104a5..4fa249f 100644
--- a/.github/workflows/checks.yml
+++ b/.github/workflows/checks.yml
@@ -1,3 +1,5 @@
+# Copyright The OpenTelemetry Authors
+# SPDX-License-Identifier: Apache-2.0
 name: Checks
 
 on:
@@ -62,3 +64,13 @@ jobs:
 
     - name: run sanitycheck.py
       run: python3 ./internal/tools/sanitycheck.py
+
+  checklicense:
+    runs-on: ubuntu-latest
+    steps:
+    - name: check out code
+      uses: actions/checkout@v3
+    - name: install tools
+      run: make install-tools
+    - name: run checklicense
+      run: make checklicense
diff --git a/.github/workflows/gradle-wrapper-validation.yml b/.github/workflows/gradle-wrapper-validation.yml
index 18082e5..88e9449 100644
--- a/.github/workflows/gradle-wrapper-validation.yml
+++ b/.github/workflows/gradle-wrapper-validation.yml
@@ -1,3 +1,5 @@
+# Copyright The OpenTelemetry Authors
+# SPDX-License-Identifier: Apache-2.0
 name: Gradle wrapper validation
 on:
   pull_request:
diff --git a/.github/workflows/release.yml b/.github/workflows/release.yml
index d7a50c3..3d2b449 100644
--- a/.github/workflows/release.yml
+++ b/.github/workflows/release.yml
@@ -1,3 +1,5 @@
+# Copyright The OpenTelemetry Authors
+# SPDX-License-Identifier: Apache-2.0
 name: "Build and Publish"
 
 on:
diff --git a/.github/workflows/stale.yml b/.github/workflows/stale.yml
index e299eaf..8b7a1df 100644
--- a/.github/workflows/stale.yml
+++ b/.github/workflows/stale.yml
@@ -1,3 +1,5 @@
+# Copyright The OpenTelemetry Authors
+# SPDX-License-Identifier: Apache-2.0
 # Syntax: https://docs.github.com/en/actions/reference/workflow-syntax-for-github-actions
 # Github Actions Stale: https://github.com/actions/stale
 
diff --git a/.gitignore b/.gitignore
index f05069f..f7aea44 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,16 +1,4 @@
-# Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+
 
 *~
 *.iml
diff --git a/.licenserc.json b/.licenserc.json
new file mode 100644
index 0000000..754fef2
--- /dev/null
+++ b/.licenserc.json
@@ -0,0 +1,38 @@
+{
+    "**/*.{go,cs,h,cpp,js,ts,tsx,rs}": [
+      "// Copyright The OpenTelemetry Authors",
+      "// SPDX-License-Identifier: Apache-2.0"
+    ],
+    "**/*.php": [
+      "<?php",
+      "// Copyright The OpenTelemetry Authors",
+      "// SPDX-License-Identifier: Apache-2.0"
+    ],
+    "**/*.java": [
+      "/*",
+      "* Copyright The OpenTelemetry Authors",
+      "* SPDX-License-Identifier: Apache-2.0",
+      "*/"
+    ],
+    "**/*.py": [
+      "#!/usr/bin/python",
+      "# Copyright The OpenTelemetry Authors",
+      "# SPDX-License-Identifier: Apache-2.0"
+    ],
+    "**/*.{ex,exs,rb,yaml,yml,sh,yamllint}": [
+      "# Copyright The OpenTelemetry Authors",
+      "# SPDX-License-Identifier: Apache-2.0"
+    ],
+    "**/{Dockerfile,Makefile}": [
+      "# Copyright The OpenTelemetry Authors",
+      "# SPDX-License-Identifier: Apache-2.0"
+    ],
+    "ignore": [
+        "node_modules/",
+        "src/cartservice/src/obj/",
+        "src/cartservice/tests/obj/",
+        "src/featureflagservice/assets/vendor/",
+        "src/featureflagservice/priv/",
+        "internal/tools/"
+    ]
+  }
\ No newline at end of file
diff --git a/.markdownlint.yaml b/.markdownlint.yaml
index 3d1395b..1ec041d 100644
--- a/.markdownlint.yaml
+++ b/.markdownlint.yaml
@@ -1,16 +1,5 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
 
 # Default state for all rules
 default: true
diff --git a/.yamllint b/.yamllint
index 75ffc8b..100c0d1 100644
--- a/.yamllint
+++ b/.yamllint
@@ -1,17 +1,5 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
-
+# SPDX-License-Identifier: Apache-2.0
 extends: default
 
 ignore-from-file: [.gitignore, .yamlignore]
diff --git a/Makefile b/Makefile
index 7c81225..fc11e98 100644
--- a/Makefile
+++ b/Makefile
@@ -1,16 +1,6 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
+
 
 # All documents to be used in spell check.
 ALL_DOCS := $(shell find . -type f -name '*.md' -not -path './.github/*' -not -path '*/node_modules/*' -not -path '*/_build/*' -not -path '*/deps/*' | sort)
@@ -57,9 +47,19 @@ install-yamllint:
 yamllint:
 	yamllint .
 
+.PHONY: checklicense
+checklicense:
+	@echo "Checking license headers..."
+	npx @kt3k/license-checker -q
+
+.PHONY: addlicense
+addlicense:
+	@echo "Adding license headers..."
+	npx @kt3k/license-checker -q -i
+
 # Run all checks in order of speed / likely failure.
 .PHONY: check
-check: misspell markdownlint
+check: misspell markdownlint checklicense
 	@echo "All checks complete"
 
 # Attempt to fix issues / regenerate tables.
diff --git a/docker-compose.yml b/docker-compose.yml
index 768c888..39c9cd6 100644
--- a/docker-compose.yml
+++ b/docker-compose.yml
@@ -1,16 +1,6 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
+
 
 version: '3.9'
 x-default-logging: &logging
diff --git a/ide-gen-proto.sh b/ide-gen-proto.sh
index 7747d45..e818d99 100755
--- a/ide-gen-proto.sh
+++ b/ide-gen-proto.sh
@@ -1,17 +1,7 @@
-#!/bin/sh
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
+#!/bin/sh
+
 
 # This script is used to generate protobuf files for all services.
 # Useful to ensure code can compile without Docker, and provide hints for IDEs.
diff --git a/internal/tools/sanitycheck.py b/internal/tools/sanitycheck.py
index 6e7033e..720516a 100644
--- a/internal/tools/sanitycheck.py
+++ b/internal/tools/sanitycheck.py
@@ -1,18 +1,6 @@
 #!/usr/bin/env python3
 
-# Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+
 
 import glob
 import os
diff --git a/internal/tools/tools.go b/internal/tools/tools.go
index bfa021b..abc10af 100644
--- a/internal/tools/tools.go
+++ b/internal/tools/tools.go
@@ -1,18 +1,6 @@
-// Copyright 2019, OpenTelemetry Authors
-//
-// Licensed under the Apache License, Version 2.0 (the "License");
-// you may not use this file except in compliance with the License.
-// You may obtain a copy of the License at
-//
-//     http://www.apache.org/licenses/LICENSE-2.0
-//
-// Unless required by applicable law or agreed to in writing, software
-// distributed under the License is distributed on an "AS IS" BASIS,
-// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-// See the License for the specific language governing permissions and
-// limitations under the License.
 //
 
+//go:build tools
 // +build tools
 
 package tools
diff --git a/kubernetes/opentelemetry-demo.yaml b/kubernetes/opentelemetry-demo.yaml
index 163c89f..b183fcf 100644
--- a/kubernetes/opentelemetry-demo.yaml
+++ b/kubernetes/opentelemetry-demo.yaml
@@ -1,3 +1,5 @@
+# Copyright The OpenTelemetry Authors
+# SPDX-License-Identifier: Apache-2.0
 ---
 # Source: opentelemetry-demo/charts/grafana/templates/serviceaccount.yaml
 apiVersion: v1
diff --git a/package-lock.json b/package-lock.json
index 7a7dbd4..4ec961a 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -5,11 +5,34 @@
   "packages": {
     "": {
       "devDependencies": {
+        "@kt3k/license-checker": "^3.2.2",
         "markdown-link-check": "^3.9.3",
         "markdown-toc": "^1.2.0",
         "markdownlint-cli": "0.31.0"
       }
     },
+    "node_modules/@deno/shim-deno": {
+      "version": "0.1.2",
+      "resolved": "https://registry.npmjs.org/@deno/shim-deno/-/shim-deno-0.1.2.tgz",
+      "integrity": "sha512-qoNVXCK5ATX6k6Oq0qWVTQpSwT2XE+KPymNTV1CTQhL3KRqR4KGlCWM2M/xW8U+KwGv8KjWR4S2lOKcspRUg9A==",
+      "dev": true,
+      "dependencies": {
+        "which": "^2.0.2"
+      }
+    },
+    "node_modules/@kt3k/license-checker": {
+      "version": "3.2.2",
+      "resolved": "https://registry.npmjs.org/@kt3k/license-checker/-/license-checker-3.2.2.tgz",
+      "integrity": "sha512-FZoO7wx8JRjFKc3ssjuHCSmpfYADTnL5FAmzGzN6a9qy9SnaEvYKI+eLWie3f4R7jPm/vD6Hay2bQlStQbfALA==",
+      "dev": true,
+      "dependencies": {
+        "@deno/shim-deno": "~0.1.1",
+        "undici": "^4.12.1"
+      },
+      "bin": {
+        "license_checker": "esm/main.js"
+      }
+    },
     "node_modules/ansi-red": {
       "version": "0.1.1",
       "resolved": "https://registry.npmjs.org/ansi-red/-/ansi-red-0.1.1.tgz",
@@ -667,6 +690,12 @@
         "node": ">=4.0.0"
       }
     },
+    "node_modules/isexe": {
+      "version": "2.0.0",
+      "resolved": "https://registry.npmjs.org/isexe/-/isexe-2.0.0.tgz",
+      "integrity": "sha512-RHxMLp9lnKHGHRng9QFhRCMbYAcVpn69smSGcq3f36xjgVVWThj4qqLbTLlq7Ssj8B+fIQ1EuCEGI2lKsyQeIw==",
+      "dev": true
+    },
     "node_modules/isobject": {
       "version": "2.1.0",
       "resolved": "https://registry.npmjs.org/isobject/-/isobject-2.1.0.tgz",
@@ -1369,12 +1398,36 @@
       "integrity": "sha512-8Y75pvTYkLJW2hWQHXxoqRgV7qb9B+9vFEtidML+7koHUFapnVJAZ6cKs+Qjz5Aw3aZWHMC6u0wJE3At+nSGwA==",
       "dev": true
     },
+    "node_modules/undici": {
+      "version": "4.16.0",
+      "resolved": "https://registry.npmjs.org/undici/-/undici-4.16.0.tgz",
+      "integrity": "sha512-tkZSECUYi+/T1i4u+4+lwZmQgLXd4BLGlrc7KZPcLIW7Jpq99+Xpc30ONv7nS6F5UNOxp/HBZSSL9MafUrvJbw==",
+      "dev": true,
+      "engines": {
+        "node": ">=12.18"
+      }
+    },
     "node_modules/util-deprecate": {
       "version": "1.0.2",
       "resolved": "https://registry.npmjs.org/util-deprecate/-/util-deprecate-1.0.2.tgz",
       "integrity": "sha512-EPD5q1uXyFxJpCrLnCc1nHnq3gOa6DZBocAIiI2TaSCA7VCJ1UJDMagCzIkXNsUYfD1daK//LTEQ8xiIbrHtcw==",
       "dev": true
     },
+    "node_modules/which": {
+      "version": "2.0.2",
+      "resolved": "https://registry.npmjs.org/which/-/which-2.0.2.tgz",
+      "integrity": "sha512-BLI3Tl1TW3Pvl70l3yq3Y64i+awpwXqsGBYWkkqMtnbXgrMD+yj7rhW0kuEDxzJaYXGjEW5ogapKNMEKNMjibA==",
+      "dev": true,
+      "dependencies": {
+        "isexe": "^2.0.0"
+      },
+      "bin": {
+        "node-which": "bin/node-which"
+      },
+      "engines": {
+        "node": ">= 8"
+      }
+    },
     "node_modules/wrappy": {
       "version": "1.0.2",
       "resolved": "https://registry.npmjs.org/wrappy/-/wrappy-1.0.2.tgz",
@@ -1392,6 +1445,25 @@
     }
   },
   "dependencies": {
+    "@deno/shim-deno": {
+      "version": "0.1.2",
+      "resolved": "https://registry.npmjs.org/@deno/shim-deno/-/shim-deno-0.1.2.tgz",
+      "integrity": "sha512-qoNVXCK5ATX6k6Oq0qWVTQpSwT2XE+KPymNTV1CTQhL3KRqR4KGlCWM2M/xW8U+KwGv8KjWR4S2lOKcspRUg9A==",
+      "dev": true,
+      "requires": {
+        "which": "^2.0.2"
+      }
+    },
+    "@kt3k/license-checker": {
+      "version": "3.2.2",
+      "resolved": "https://registry.npmjs.org/@kt3k/license-checker/-/license-checker-3.2.2.tgz",
+      "integrity": "sha512-FZoO7wx8JRjFKc3ssjuHCSmpfYADTnL5FAmzGzN6a9qy9SnaEvYKI+eLWie3f4R7jPm/vD6Hay2bQlStQbfALA==",
+      "dev": true,
+      "requires": {
+        "@deno/shim-deno": "~0.1.1",
+        "undici": "^4.12.1"
+      }
+    },
     "ansi-red": {
       "version": "0.1.1",
       "resolved": "https://registry.npmjs.org/ansi-red/-/ansi-red-0.1.1.tgz",
@@ -1886,6 +1958,12 @@
         "punycode": "2.x.x"
       }
     },
+    "isexe": {
+      "version": "2.0.0",
+      "resolved": "https://registry.npmjs.org/isexe/-/isexe-2.0.0.tgz",
+      "integrity": "sha512-RHxMLp9lnKHGHRng9QFhRCMbYAcVpn69smSGcq3f36xjgVVWThj4qqLbTLlq7Ssj8B+fIQ1EuCEGI2lKsyQeIw==",
+      "dev": true
+    },
     "isobject": {
       "version": "2.1.0",
       "resolved": "https://registry.npmjs.org/isobject/-/isobject-2.1.0.tgz",
@@ -2457,12 +2535,27 @@
       "integrity": "sha512-8Y75pvTYkLJW2hWQHXxoqRgV7qb9B+9vFEtidML+7koHUFapnVJAZ6cKs+Qjz5Aw3aZWHMC6u0wJE3At+nSGwA==",
       "dev": true
     },
+    "undici": {
+      "version": "4.16.0",
+      "resolved": "https://registry.npmjs.org/undici/-/undici-4.16.0.tgz",
+      "integrity": "sha512-tkZSECUYi+/T1i4u+4+lwZmQgLXd4BLGlrc7KZPcLIW7Jpq99+Xpc30ONv7nS6F5UNOxp/HBZSSL9MafUrvJbw==",
+      "dev": true
+    },
     "util-deprecate": {
       "version": "1.0.2",
       "resolved": "https://registry.npmjs.org/util-deprecate/-/util-deprecate-1.0.2.tgz",
       "integrity": "sha512-EPD5q1uXyFxJpCrLnCc1nHnq3gOa6DZBocAIiI2TaSCA7VCJ1UJDMagCzIkXNsUYfD1daK//LTEQ8xiIbrHtcw==",
       "dev": true
     },
+    "which": {
+      "version": "2.0.2",
+      "resolved": "https://registry.npmjs.org/which/-/which-2.0.2.tgz",
+      "integrity": "sha512-BLI3Tl1TW3Pvl70l3yq3Y64i+awpwXqsGBYWkkqMtnbXgrMD+yj7rhW0kuEDxzJaYXGjEW5ogapKNMEKNMjibA==",
+      "dev": true,
+      "requires": {
+        "isexe": "^2.0.0"
+      }
+    },
     "wrappy": {
       "version": "1.0.2",
       "resolved": "https://registry.npmjs.org/wrappy/-/wrappy-1.0.2.tgz",
diff --git a/package.json b/package.json
index 94e1ead..183c40c 100644
--- a/package.json
+++ b/package.json
@@ -2,6 +2,7 @@
   "devDependencies": {
     "markdown-link-check": "^3.9.3",
     "markdown-toc": "^1.2.0",
-    "markdownlint-cli": "0.31.0"
+    "markdownlint-cli": "0.31.0",
+    "@kt3k/license-checker": "^3.2.2"
   }
 }
diff --git a/src/accountingservice/Dockerfile b/src/accountingservice/Dockerfile
index 27b1a7a..320b538 100644
--- a/src/accountingservice/Dockerfile
+++ b/src/accountingservice/Dockerfile
@@ -1,16 +1,6 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
+
 
 FROM golang:1.19.2-alpine AS builder
 RUN apk add build-base protobuf-dev protoc
diff --git a/src/accountingservice/kafka/consumer.go b/src/accountingservice/kafka/consumer.go
index 5128402..97c913d 100644
--- a/src/accountingservice/kafka/consumer.go
+++ b/src/accountingservice/kafka/consumer.go
@@ -1,17 +1,5 @@
 // Copyright The OpenTelemetry Authors
-//
-// Licensed under the Apache License, Version 2.0 (the "License");
-// you may not use this file except in compliance with the License.
-// You may obtain a copy of the License at
-//
-//     http://www.apache.org/licenses/LICENSE-2.0
-//
-// Unless required by applicable law or agreed to in writing, software
-// distributed under the License is distributed on an "AS IS" BASIS,
-// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-// See the License for the specific language governing permissions and
-// limitations under the License.
-
+// SPDX-License-Identifier: Apache-2.0
 package kafka
 
 import (
diff --git a/src/accountingservice/main.go b/src/accountingservice/main.go
index 77084de..9eec36c 100644
--- a/src/accountingservice/main.go
+++ b/src/accountingservice/main.go
@@ -1,17 +1,5 @@
 // Copyright The OpenTelemetry Authors
-//
-// Licensed under the Apache License, Version 2.0 (the "License");
-// you may not use this file except in compliance with the License.
-// You may obtain a copy of the License at
-//
-//     http://www.apache.org/licenses/LICENSE-2.0
-//
-// Unless required by applicable law or agreed to in writing, software
-// distributed under the License is distributed on an "AS IS" BASIS,
-// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-// See the License for the specific language governing permissions and
-// limitations under the License.
-
+// SPDX-License-Identifier: Apache-2.0
 package main
 
 import (
diff --git a/src/adservice/Dockerfile b/src/adservice/Dockerfile
index 834ddfc..0916232 100644
--- a/src/adservice/Dockerfile
+++ b/src/adservice/Dockerfile
@@ -1,16 +1,6 @@
-# Copyright 2020 Google LLC
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#      http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# Copyright The OpenTelemetry Authors
+# SPDX-License-Identifier: Apache-2.0
+
 
 FROM eclipse-temurin:17-jdk AS builder
 
diff --git a/src/adservice/build.gradle b/src/adservice/build.gradle
index 3117e71..8997ccd 100644
--- a/src/adservice/build.gradle
+++ b/src/adservice/build.gradle
@@ -1,16 +1,3 @@
-// Copyright The OpenTelemetry Authors
-//
-// Licensed under the Apache License, Version 2.0 (the "License");
-// you may not use this file except in compliance with the License.
-// You may obtain a copy of the License at
-//
-//     http://www.apache.org/licenses/LICENSE-2.0
-//
-// Unless required by applicable law or agreed to in writing, software
-// distributed under the License is distributed on an "AS IS" BASIS,
-// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-// See the License for the specific language governing permissions and
-// limitations under the License.
 
 plugins {
     id 'com.google.protobuf' version '0.8.18'
diff --git a/src/adservice/settings.gradle b/src/adservice/settings.gradle
index 3cf5588..963f698 100644
--- a/src/adservice/settings.gradle
+++ b/src/adservice/settings.gradle
@@ -1,15 +1,2 @@
-// Copyright The OpenTelemetry Authors
-//
-// Licensed under the Apache License, Version 2.0 (the "License");
-// you may not use this file except in compliance with the License.
-// You may obtain a copy of the License at
-//
-//     http://www.apache.org/licenses/LICENSE-2.0
-//
-// Unless required by applicable law or agreed to in writing, software
-// distributed under the License is distributed on an "AS IS" BASIS,
-// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-// See the License for the specific language governing permissions and
-// limitations under the License.
 
 rootProject.name = 'opentelemetry-demo-ad-service'
diff --git a/src/adservice/src/main/java/oteldemo/AdService.java b/src/adservice/src/main/java/oteldemo/AdService.java
index d0ec11d..baa4e9f 100644
--- a/src/adservice/src/main/java/oteldemo/AdService.java
+++ b/src/adservice/src/main/java/oteldemo/AdService.java
@@ -1,18 +1,7 @@
 /*
- * Copyright 2018, Google LLC.
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *     http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
+* Copyright The OpenTelemetry Authors
+* SPDX-License-Identifier: Apache-2.0
+*/
 
 package oteldemo;
 
diff --git a/src/cartservice/src/Dockerfile b/src/cartservice/src/Dockerfile
index e1c15ea..e1eb4c7 100644
--- a/src/cartservice/src/Dockerfile
+++ b/src/cartservice/src/Dockerfile
@@ -1,3 +1,5 @@
+# Copyright The OpenTelemetry Authors
+# SPDX-License-Identifier: Apache-2.0
 # Copyright 2021 Google LLC
 #
 # Licensed under the Apache License, Version 2.0 (the "License");
diff --git a/src/cartservice/src/Program.cs b/src/cartservice/src/Program.cs
index 19c433f..ac114d4 100644
--- a/src/cartservice/src/Program.cs
+++ b/src/cartservice/src/Program.cs
@@ -1,17 +1,5 @@
-// Copyright 2020 Google LLC
-//
-// Licensed under the Apache License, Version 2.0 (the "License");
-// you may not use this file except in compliance with the License.
-// You may obtain a copy of the License at
-//
-//      http://www.apache.org/licenses/LICENSE-2.0
-//
-// Unless required by applicable law or agreed to in writing, software
-// distributed under the License is distributed on an "AS IS" BASIS,
-// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-// See the License for the specific language governing permissions and
-// limitations under the License.
-
+// Copyright The OpenTelemetry Authors
+// SPDX-License-Identifier: Apache-2.0
 using System;
 
 using cartservice.cartstore;
diff --git a/src/cartservice/src/cartstore/ICartStore.cs b/src/cartservice/src/cartstore/ICartStore.cs
index 15bcb5c..8eda433 100644
--- a/src/cartservice/src/cartstore/ICartStore.cs
+++ b/src/cartservice/src/cartstore/ICartStore.cs
@@ -1,17 +1,5 @@
-// Copyright 2018 Google LLC
-//
-// Licensed under the Apache License, Version 2.0 (the "License");
-// you may not use this file except in compliance with the License.
-// You may obtain a copy of the License at
-//
-//      http://www.apache.org/licenses/LICENSE-2.0
-//
-// Unless required by applicable law or agreed to in writing, software
-// distributed under the License is distributed on an "AS IS" BASIS,
-// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-// See the License for the specific language governing permissions and
-// limitations under the License.
-
+// Copyright The OpenTelemetry Authors
+// SPDX-License-Identifier: Apache-2.0
 using System.Threading.Tasks;
 
 namespace cartservice.cartstore
diff --git a/src/cartservice/src/cartstore/LocalCartStore.cs b/src/cartservice/src/cartstore/LocalCartStore.cs
index 31d82c2..5824839 100644
--- a/src/cartservice/src/cartstore/LocalCartStore.cs
+++ b/src/cartservice/src/cartstore/LocalCartStore.cs
@@ -1,17 +1,5 @@
-// Copyright 2018 Google LLC
-//
-// Licensed under the Apache License, Version 2.0 (the "License");
-// you may not use this file except in compliance with the License.
-// You may obtain a copy of the License at
-//
-//      http://www.apache.org/licenses/LICENSE-2.0
-//
-// Unless required by applicable law or agreed to in writing, software
-// distributed under the License is distributed on an "AS IS" BASIS,
-// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-// See the License for the specific language governing permissions and
-// limitations under the License.
-
+// Copyright The OpenTelemetry Authors
+// SPDX-License-Identifier: Apache-2.0
 using System;
 using System.Collections.Concurrent;
 using System.Diagnostics;
diff --git a/src/cartservice/src/cartstore/RedisCartStore.cs b/src/cartservice/src/cartstore/RedisCartStore.cs
index 6175633..0bc889e 100644
--- a/src/cartservice/src/cartstore/RedisCartStore.cs
+++ b/src/cartservice/src/cartstore/RedisCartStore.cs
@@ -1,17 +1,5 @@
-// Copyright 2018 Google LLC
-//
-// Licensed under the Apache License, Version 2.0 (the "License");
-// you may not use this file except in compliance with the License.
-// You may obtain a copy of the License at
-//
-//      http://www.apache.org/licenses/LICENSE-2.0
-//
-// Unless required by applicable law or agreed to in writing, software
-// distributed under the License is distributed on an "AS IS" BASIS,
-// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-// See the License for the specific language governing permissions and
-// limitations under the License.
-
+// Copyright The OpenTelemetry Authors
+// SPDX-License-Identifier: Apache-2.0
 using System;
 using System.Linq;
 using System.Threading.Tasks;
diff --git a/src/cartservice/src/services/CartService.cs b/src/cartservice/src/services/CartService.cs
index 19ee141..9d8d11b 100644
--- a/src/cartservice/src/services/CartService.cs
+++ b/src/cartservice/src/services/CartService.cs
@@ -1,17 +1,5 @@
-// Copyright 2020 Google LLC
-//
-// Licensed under the Apache License, Version 2.0 (the "License");
-// you may not use this file except in compliance with the License.
-// You may obtain a copy of the License at
-//
-//      http://www.apache.org/licenses/LICENSE-2.0
-//
-// Unless required by applicable law or agreed to in writing, software
-// distributed under the License is distributed on an "AS IS" BASIS,
-// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-// See the License for the specific language governing permissions and
-// limitations under the License.
-
+// Copyright The OpenTelemetry Authors
+// SPDX-License-Identifier: Apache-2.0
 using System.Diagnostics;
 using System.Threading.Tasks;
 using Grpc.Core;
diff --git a/src/cartservice/tests/CartServiceTests.cs b/src/cartservice/tests/CartServiceTests.cs
index 597d5ef..b55970b 100644
--- a/src/cartservice/tests/CartServiceTests.cs
+++ b/src/cartservice/tests/CartServiceTests.cs
@@ -1,17 +1,5 @@
-// Copyright 2018 Google LLC
-//
-// Licensed under the Apache License, Version 2.0 (the "License");
-// you may not use this file except in compliance with the License.
-// You may obtain a copy of the License at
-//
-//      http://www.apache.org/licenses/LICENSE-2.0
-//
-// Unless required by applicable law or agreed to in writing, software
-// distributed under the License is distributed on an "AS IS" BASIS,
-// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-// See the License for the specific language governing permissions and
-// limitations under the License.
-
+// Copyright The OpenTelemetry Authors
+// SPDX-License-Identifier: Apache-2.0
 using System;
 using System.Threading.Tasks;
 using Grpc.Net.Client;
diff --git a/src/checkoutservice/Dockerfile b/src/checkoutservice/Dockerfile
index ca6e2e0..2a7bada 100644
--- a/src/checkoutservice/Dockerfile
+++ b/src/checkoutservice/Dockerfile
@@ -1,16 +1,6 @@
-# Copyright 2020 Google LLC
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#      http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# Copyright The OpenTelemetry Authors
+# SPDX-License-Identifier: Apache-2.0
+
 
 FROM golang:1.19.2-alpine AS builder
 RUN apk add build-base protobuf-dev protoc
diff --git a/src/checkoutservice/kafka/producer.go b/src/checkoutservice/kafka/producer.go
index ddcf951..45f3e1d 100644
--- a/src/checkoutservice/kafka/producer.go
+++ b/src/checkoutservice/kafka/producer.go
@@ -1,17 +1,5 @@
 // Copyright The OpenTelemetry Authors
-//
-// Licensed under the Apache License, Version 2.0 (the "License");
-// you may not use this file except in compliance with the License.
-// You may obtain a copy of the License at
-//
-//     http://www.apache.org/licenses/LICENSE-2.0
-//
-// Unless required by applicable law or agreed to in writing, software
-// distributed under the License is distributed on an "AS IS" BASIS,
-// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-// See the License for the specific language governing permissions and
-// limitations under the License.
-
+// SPDX-License-Identifier: Apache-2.0
 package kafka
 
 import (
diff --git a/src/checkoutservice/main.go b/src/checkoutservice/main.go
index 0cd8577..e4ee402 100644
--- a/src/checkoutservice/main.go
+++ b/src/checkoutservice/main.go
@@ -1,17 +1,5 @@
-// Copyright 2018 Google LLC
-//
-// Licensed under the Apache License, Version 2.0 (the "License");
-// you may not use this file except in compliance with the License.
-// You may obtain a copy of the License at
-//
-//      http://www.apache.org/licenses/LICENSE-2.0
-//
-// Unless required by applicable law or agreed to in writing, software
-// distributed under the License is distributed on an "AS IS" BASIS,
-// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-// See the License for the specific language governing permissions and
-// limitations under the License.
-
+// Copyright The OpenTelemetry Authors
+// SPDX-License-Identifier: Apache-2.0
 package main
 
 import (
diff --git a/src/checkoutservice/money/money.go b/src/checkoutservice/money/money.go
index a70a6ad..883b405 100644
--- a/src/checkoutservice/money/money.go
+++ b/src/checkoutservice/money/money.go
@@ -1,17 +1,5 @@
-// Copyright 2018 Google LLC
-//
-// Licensed under the Apache License, Version 2.0 (the "License");
-// you may not use this file except in compliance with the License.
-// You may obtain a copy of the License at
-//
-//      http://www.apache.org/licenses/LICENSE-2.0
-//
-// Unless required by applicable law or agreed to in writing, software
-// distributed under the License is distributed on an "AS IS" BASIS,
-// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-// See the License for the specific language governing permissions and
-// limitations under the License.
-
+// Copyright The OpenTelemetry Authors
+// SPDX-License-Identifier: Apache-2.0
 package money
 
 import (
diff --git a/src/checkoutservice/money/money_test.go b/src/checkoutservice/money/money_test.go
index 82a1806..55da122 100644
--- a/src/checkoutservice/money/money_test.go
+++ b/src/checkoutservice/money/money_test.go
@@ -1,17 +1,5 @@
-// Copyright 2018 Google LLC
-//
-// Licensed under the Apache License, Version 2.0 (the "License");
-// you may not use this file except in compliance with the License.
-// You may obtain a copy of the License at
-//
-//      http://www.apache.org/licenses/LICENSE-2.0
-//
-// Unless required by applicable law or agreed to in writing, software
-// distributed under the License is distributed on an "AS IS" BASIS,
-// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-// See the License for the specific language governing permissions and
-// limitations under the License.
-
+// Copyright The OpenTelemetry Authors
+// SPDX-License-Identifier: Apache-2.0
 package money
 
 import (
diff --git a/src/currencyservice/Dockerfile b/src/currencyservice/Dockerfile
index bce1f10..cda395e 100644
--- a/src/currencyservice/Dockerfile
+++ b/src/currencyservice/Dockerfile
@@ -1,3 +1,5 @@
+# Copyright The OpenTelemetry Authors
+# SPDX-License-Identifier: Apache-2.0
 # Copyright 2023 The OpenTelemetry Authors
 #
 # Licensed under the Apache License, Version 2.0 (the "License");
diff --git a/src/currencyservice/src/meter_common.h b/src/currencyservice/src/meter_common.h
index 24fad72..747b06c 100644
--- a/src/currencyservice/src/meter_common.h
+++ b/src/currencyservice/src/meter_common.h
@@ -1,16 +1,5 @@
 // Copyright The OpenTelemetry Authors
-//
-// Licensed under the Apache License, Version 2.0 (the "License");
-// you may not use this file except in compliance with the License.
-// You may obtain a copy of the License at
-//
-//     http://www.apache.org/licenses/LICENSE-2.0
-//
-// Unless required by applicable law or agreed to in writing, software
-// distributed under the License is distributed on an "AS IS" BASIS,
-// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-// See the License for the specific language governing permissions and
-// limitations under the License.
+// SPDX-License-Identifier: Apache-2.0
 
 #include "opentelemetry/exporters/otlp/otlp_grpc_metric_exporter_factory.h"
 #include "opentelemetry/metrics/provider.h"
diff --git a/src/currencyservice/src/server.cpp b/src/currencyservice/src/server.cpp
index 88a2817..ee78139 100644
--- a/src/currencyservice/src/server.cpp
+++ b/src/currencyservice/src/server.cpp
@@ -1,16 +1,5 @@
 // Copyright The OpenTelemetry Authors
-//
-// Licensed under the Apache License, Version 2.0 (the "License");
-// you may not use this file except in compliance with the License.
-// You may obtain a copy of the License at
-//
-//     http://www.apache.org/licenses/LICENSE-2.0
-//
-// Unless required by applicable law or agreed to in writing, software
-// distributed under the License is distributed on an "AS IS" BASIS,
-// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-// See the License for the specific language governing permissions and
-// limitations under the License.
+// SPDX-License-Identifier: Apache-2.0
 
 #include <iostream>
 #include <math.h>
diff --git a/src/currencyservice/src/tracer_common.h b/src/currencyservice/src/tracer_common.h
index b37e721..3ebab43 100644
--- a/src/currencyservice/src/tracer_common.h
+++ b/src/currencyservice/src/tracer_common.h
@@ -1,16 +1,5 @@
 // Copyright The OpenTelemetry Authors
-//
-// Licensed under the Apache License, Version 2.0 (the "License");
-// you may not use this file except in compliance with the License.
-// You may obtain a copy of the License at
-//
-//     http://www.apache.org/licenses/LICENSE-2.0
-//
-// Unless required by applicable law or agreed to in writing, software
-// distributed under the License is distributed on an "AS IS" BASIS,
-// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-// See the License for the specific language governing permissions and
-// limitations under the License.
+// SPDX-License-Identifier: Apache-2.0
 
 #pragma once
 #include "opentelemetry/exporters/otlp/otlp_grpc_exporter_factory.h"
diff --git a/src/emailservice/Dockerfile b/src/emailservice/Dockerfile
index 5313b93..e6cf316 100644
--- a/src/emailservice/Dockerfile
+++ b/src/emailservice/Dockerfile
@@ -1,16 +1,6 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
+
 
 FROM ruby:3.1.2-alpine as base
 
diff --git a/src/emailservice/Gemfile b/src/emailservice/Gemfile
index fabaf7a..9c3c2ee 100644
--- a/src/emailservice/Gemfile
+++ b/src/emailservice/Gemfile
@@ -1,16 +1,4 @@
-# Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+
 
 source "https://rubygems.org"
 
diff --git a/src/emailservice/email_server.rb b/src/emailservice/email_server.rb
index 6df006e..ae0291d 100644
--- a/src/emailservice/email_server.rb
+++ b/src/emailservice/email_server.rb
@@ -1,16 +1,5 @@
- # Copyright The OpenTelemetry Authors
- #
- # Licensed under the Apache License, Version 2.0 (the "License");
- # you may not use this file except in compliance with the License.
- # You may obtain a copy of the License at
- #
- #     http://www.apache.org/licenses/LICENSE-2.0
- #
- # Unless required by applicable law or agreed to in writing, software
- # distributed under the License is distributed on an "AS IS" BASIS,
- # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- # See the License for the specific language governing permissions and
- # limitations under the License.
+# Copyright The OpenTelemetry Authors
+# SPDX-License-Identifier: Apache-2.0
 
 require "ostruct"
 require "pony"
diff --git a/src/featureflagservice/.formatter.exs b/src/featureflagservice/.formatter.exs
index 7be38a1..f2a6044 100644
--- a/src/featureflagservice/.formatter.exs
+++ b/src/featureflagservice/.formatter.exs
@@ -1,16 +1,6 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
+
 
 [
   import_deps: [:ecto, :phoenix],
diff --git a/src/featureflagservice/Dockerfile b/src/featureflagservice/Dockerfile
index ec082c7..4afc25f 100644
--- a/src/featureflagservice/Dockerfile
+++ b/src/featureflagservice/Dockerfile
@@ -1,16 +1,6 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
+
 
 # Find eligible builder and runner images on Docker Hub. We use Ubuntu/Debian instead of
 # Alpine to avoid DNS resolution issues in production.
diff --git a/src/featureflagservice/assets/js/app.js b/src/featureflagservice/assets/js/app.js
index 81bb0ac..ab36ce2 100644
--- a/src/featureflagservice/assets/js/app.js
+++ b/src/featureflagservice/assets/js/app.js
@@ -1,16 +1,5 @@
 // Copyright The OpenTelemetry Authors
-//
-// Licensed under the Apache License, Version 2.0 (the "License");
-// you may not use this file except in compliance with the License.
-// You may obtain a copy of the License at
-//
-//     http://www.apache.org/licenses/LICENSE-2.0
-//
-// Unless required by applicable law or agreed to in writing, software
-// distributed under the License is distributed on an "AS IS" BASIS,
-// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-// See the License for the specific language governing permissions and
-// limitations under the License.
+// SPDX-License-Identifier: Apache-2.0
 
 // We import the CSS which is extracted to its own file by esbuild.
 // Remove this line if you add a your own CSS build pipeline (e.g postcss).
diff --git a/src/featureflagservice/config/config.exs b/src/featureflagservice/config/config.exs
index 8f2b544..4c4bae4 100644
--- a/src/featureflagservice/config/config.exs
+++ b/src/featureflagservice/config/config.exs
@@ -1,16 +1,6 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
+
 
 # This file is responsible for configuring your application
 # and its dependencies with the aid of the Config module.
diff --git a/src/featureflagservice/config/dev.exs b/src/featureflagservice/config/dev.exs
index 9b919ce..8f5e1f1 100644
--- a/src/featureflagservice/config/dev.exs
+++ b/src/featureflagservice/config/dev.exs
@@ -1,16 +1,6 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
+
 
 import Config
 
diff --git a/src/featureflagservice/config/prod.exs b/src/featureflagservice/config/prod.exs
index 1526528..b4fb5e0 100644
--- a/src/featureflagservice/config/prod.exs
+++ b/src/featureflagservice/config/prod.exs
@@ -1,16 +1,6 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
+
 
 import Config
 
diff --git a/src/featureflagservice/config/runtime.exs b/src/featureflagservice/config/runtime.exs
index 259725c..c16d214 100644
--- a/src/featureflagservice/config/runtime.exs
+++ b/src/featureflagservice/config/runtime.exs
@@ -1,16 +1,6 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
+
 
 import Config
 
diff --git a/src/featureflagservice/config/test.exs b/src/featureflagservice/config/test.exs
index 410b038..8da154d 100644
--- a/src/featureflagservice/config/test.exs
+++ b/src/featureflagservice/config/test.exs
@@ -1,16 +1,6 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
+
 
 import Config
 
diff --git a/src/featureflagservice/lib/featureflagservice.ex b/src/featureflagservice/lib/featureflagservice.ex
index 0850135..fca24cc 100644
--- a/src/featureflagservice/lib/featureflagservice.ex
+++ b/src/featureflagservice/lib/featureflagservice.ex
@@ -1,16 +1,6 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
+
 
 defmodule Featureflagservice do
   @moduledoc """
diff --git a/src/featureflagservice/lib/featureflagservice/application.ex b/src/featureflagservice/lib/featureflagservice/application.ex
index 368c109..8f2d333 100644
--- a/src/featureflagservice/lib/featureflagservice/application.ex
+++ b/src/featureflagservice/lib/featureflagservice/application.ex
@@ -1,16 +1,6 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
+
 
 defmodule Featureflagservice.Application do
   # See https://hexdocs.pm/elixir/Application.html
diff --git a/src/featureflagservice/lib/featureflagservice/feature_flags.ex b/src/featureflagservice/lib/featureflagservice/feature_flags.ex
index 4960cfb..7897c49 100644
--- a/src/featureflagservice/lib/featureflagservice/feature_flags.ex
+++ b/src/featureflagservice/lib/featureflagservice/feature_flags.ex
@@ -1,16 +1,6 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
+
 
 defmodule Featureflagservice.FeatureFlags do
   @moduledoc """
diff --git a/src/featureflagservice/lib/featureflagservice/feature_flags/feature_flag.ex b/src/featureflagservice/lib/featureflagservice/feature_flags/feature_flag.ex
index be7109d..42f7975 100644
--- a/src/featureflagservice/lib/featureflagservice/feature_flags/feature_flag.ex
+++ b/src/featureflagservice/lib/featureflagservice/feature_flags/feature_flag.ex
@@ -1,16 +1,6 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
+
 
 defmodule Featureflagservice.FeatureFlags.FeatureFlag do
   use Ecto.Schema
diff --git a/src/featureflagservice/lib/featureflagservice/release.ex b/src/featureflagservice/lib/featureflagservice/release.ex
index 99ec6d8..0bcfdce 100644
--- a/src/featureflagservice/lib/featureflagservice/release.ex
+++ b/src/featureflagservice/lib/featureflagservice/release.ex
@@ -1,16 +1,6 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
+
 
 defmodule Featureflagservice.Release do
   @moduledoc """
diff --git a/src/featureflagservice/lib/featureflagservice/repo.ex b/src/featureflagservice/lib/featureflagservice/repo.ex
index 9056873..0cf9c38 100644
--- a/src/featureflagservice/lib/featureflagservice/repo.ex
+++ b/src/featureflagservice/lib/featureflagservice/repo.ex
@@ -1,16 +1,6 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
+
 
 defmodule Featureflagservice.Repo do
   use Ecto.Repo,
diff --git a/src/featureflagservice/lib/featureflagservice_web.ex b/src/featureflagservice/lib/featureflagservice_web.ex
index 4cd8421..2d5c706 100644
--- a/src/featureflagservice/lib/featureflagservice_web.ex
+++ b/src/featureflagservice/lib/featureflagservice_web.ex
@@ -1,16 +1,6 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
+
 
 defmodule FeatureflagserviceWeb do
   @moduledoc """
diff --git a/src/featureflagservice/lib/featureflagservice_web/controllers/feature_flag_controller.ex b/src/featureflagservice/lib/featureflagservice_web/controllers/feature_flag_controller.ex
index 2514b0b..00639df 100644
--- a/src/featureflagservice/lib/featureflagservice_web/controllers/feature_flag_controller.ex
+++ b/src/featureflagservice/lib/featureflagservice_web/controllers/feature_flag_controller.ex
@@ -1,16 +1,6 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
+
 
 defmodule FeatureflagserviceWeb.FeatureFlagController do
   use FeatureflagserviceWeb, :controller
diff --git a/src/featureflagservice/lib/featureflagservice_web/controllers/page_controller.ex b/src/featureflagservice/lib/featureflagservice_web/controllers/page_controller.ex
index e1797da..fbaf4f4 100644
--- a/src/featureflagservice/lib/featureflagservice_web/controllers/page_controller.ex
+++ b/src/featureflagservice/lib/featureflagservice_web/controllers/page_controller.ex
@@ -1,16 +1,6 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
+
 
 defmodule FeatureflagserviceWeb.PageController do
   use FeatureflagserviceWeb, :controller
diff --git a/src/featureflagservice/lib/featureflagservice_web/endpoint.ex b/src/featureflagservice/lib/featureflagservice_web/endpoint.ex
index 00b0f33..e42fce4 100644
--- a/src/featureflagservice/lib/featureflagservice_web/endpoint.ex
+++ b/src/featureflagservice/lib/featureflagservice_web/endpoint.ex
@@ -1,16 +1,6 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
+
 
 defmodule FeatureflagserviceWeb.Endpoint do
   use Phoenix.Endpoint, otp_app: :featureflagservice
diff --git a/src/featureflagservice/lib/featureflagservice_web/gettext.ex b/src/featureflagservice/lib/featureflagservice_web/gettext.ex
index 23583d7..a28990a 100644
--- a/src/featureflagservice/lib/featureflagservice_web/gettext.ex
+++ b/src/featureflagservice/lib/featureflagservice_web/gettext.ex
@@ -1,16 +1,6 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
+
 
 defmodule FeatureflagserviceWeb.Gettext do
   @moduledoc """
diff --git a/src/featureflagservice/lib/featureflagservice_web/router.ex b/src/featureflagservice/lib/featureflagservice_web/router.ex
index 9c122b9..0dd814f 100644
--- a/src/featureflagservice/lib/featureflagservice_web/router.ex
+++ b/src/featureflagservice/lib/featureflagservice_web/router.ex
@@ -1,16 +1,6 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
+
 
 defmodule FeatureflagserviceWeb.Router do
   use FeatureflagserviceWeb, :router
diff --git a/src/featureflagservice/lib/featureflagservice_web/views/error_helpers.ex b/src/featureflagservice/lib/featureflagservice_web/views/error_helpers.ex
index 952d4d0..98aa8f3 100644
--- a/src/featureflagservice/lib/featureflagservice_web/views/error_helpers.ex
+++ b/src/featureflagservice/lib/featureflagservice_web/views/error_helpers.ex
@@ -1,16 +1,6 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
+
 
 defmodule FeatureflagserviceWeb.ErrorHelpers do
   @moduledoc """
diff --git a/src/featureflagservice/lib/featureflagservice_web/views/error_view.ex b/src/featureflagservice/lib/featureflagservice_web/views/error_view.ex
index b9eaa0c..e490315 100644
--- a/src/featureflagservice/lib/featureflagservice_web/views/error_view.ex
+++ b/src/featureflagservice/lib/featureflagservice_web/views/error_view.ex
@@ -1,16 +1,6 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
+
 
 defmodule FeatureflagserviceWeb.ErrorView do
   use FeatureflagserviceWeb, :view
diff --git a/src/featureflagservice/lib/featureflagservice_web/views/feature_flag_view.ex b/src/featureflagservice/lib/featureflagservice_web/views/feature_flag_view.ex
index b59623f..ad4bb48 100644
--- a/src/featureflagservice/lib/featureflagservice_web/views/feature_flag_view.ex
+++ b/src/featureflagservice/lib/featureflagservice_web/views/feature_flag_view.ex
@@ -1,16 +1,6 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
+
 
 defmodule FeatureflagserviceWeb.FeatureFlagView do
   use FeatureflagserviceWeb, :view
diff --git a/src/featureflagservice/lib/featureflagservice_web/views/layout_view.ex b/src/featureflagservice/lib/featureflagservice_web/views/layout_view.ex
index 471c34a..1a8a694 100644
--- a/src/featureflagservice/lib/featureflagservice_web/views/layout_view.ex
+++ b/src/featureflagservice/lib/featureflagservice_web/views/layout_view.ex
@@ -1,16 +1,6 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
+
 
 defmodule FeatureflagserviceWeb.LayoutView do
   use FeatureflagserviceWeb, :view
diff --git a/src/featureflagservice/lib/featureflagservice_web/views/page_view.ex b/src/featureflagservice/lib/featureflagservice_web/views/page_view.ex
index 9882aad..d76f8c0 100644
--- a/src/featureflagservice/lib/featureflagservice_web/views/page_view.ex
+++ b/src/featureflagservice/lib/featureflagservice_web/views/page_view.ex
@@ -1,16 +1,6 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
+
 
 defmodule FeatureflagserviceWeb.PageView do
   use FeatureflagserviceWeb, :view
diff --git a/src/featureflagservice/mix.exs b/src/featureflagservice/mix.exs
index 4a69073..660e05d 100644
--- a/src/featureflagservice/mix.exs
+++ b/src/featureflagservice/mix.exs
@@ -1,16 +1,6 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
+
 
 defmodule Featureflagservice.MixProject do
   use Mix.Project
diff --git a/src/featureflagservice/priv/repo/migrations/20220524172636_create_featureflags.exs b/src/featureflagservice/priv/repo/migrations/20220524172636_create_featureflags.exs
index 5e9004d..f251cad 100644
--- a/src/featureflagservice/priv/repo/migrations/20220524172636_create_featureflags.exs
+++ b/src/featureflagservice/priv/repo/migrations/20220524172636_create_featureflags.exs
@@ -1,16 +1,4 @@
-# Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+
 
 defmodule Featureflagservice.Repo.Migrations.CreateFeatureflags do
   use Ecto.Migration
diff --git a/src/featureflagservice/priv/repo/seeds.exs b/src/featureflagservice/priv/repo/seeds.exs
index fea9b20..b3d1b65 100644
--- a/src/featureflagservice/priv/repo/seeds.exs
+++ b/src/featureflagservice/priv/repo/seeds.exs
@@ -1,16 +1,4 @@
-# Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+
 
 # Script for populating the database. You can run it as:
 #
diff --git a/src/featureflagservice/rel/overlays/bin/migrate b/src/featureflagservice/rel/overlays/bin/migrate
index b98a0c1..434802d 100755
--- a/src/featureflagservice/rel/overlays/bin/migrate
+++ b/src/featureflagservice/rel/overlays/bin/migrate
@@ -1,17 +1,5 @@
 #!/bin/sh
-# Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+
 
 cd -P -- "$(dirname -- "$0")"
 exec ./featureflagservice eval Featureflagservice.Release.migrate
diff --git a/src/featureflagservice/rel/overlays/bin/server b/src/featureflagservice/rel/overlays/bin/server
index 71e1da3..aa36204 100755
--- a/src/featureflagservice/rel/overlays/bin/server
+++ b/src/featureflagservice/rel/overlays/bin/server
@@ -1,17 +1,5 @@
 #!/bin/sh
-# Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+
 
 cd -P -- "$(dirname -- "$0")"
 
diff --git a/src/featureflagservice/test/featureflagservice/feature_flags_test.exs b/src/featureflagservice/test/featureflagservice/feature_flags_test.exs
index 2ca9866..c3020f3 100644
--- a/src/featureflagservice/test/featureflagservice/feature_flags_test.exs
+++ b/src/featureflagservice/test/featureflagservice/feature_flags_test.exs
@@ -1,16 +1,6 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
+
 
 defmodule Featureflagservice.FeatureFlagsTest do
   use Featureflagservice.DataCase
diff --git a/src/featureflagservice/test/featureflagservice_web/controllers/feature_flag_controller_test.exs b/src/featureflagservice/test/featureflagservice_web/controllers/feature_flag_controller_test.exs
index fba9067..1836bf5 100644
--- a/src/featureflagservice/test/featureflagservice_web/controllers/feature_flag_controller_test.exs
+++ b/src/featureflagservice/test/featureflagservice_web/controllers/feature_flag_controller_test.exs
@@ -1,16 +1,6 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
+
 
 defmodule FeatureflagserviceWeb.FeatureFlagControllerTest do
   use FeatureflagserviceWeb.ConnCase
diff --git a/src/featureflagservice/test/featureflagservice_web/controllers/page_controller_test.exs b/src/featureflagservice/test/featureflagservice_web/controllers/page_controller_test.exs
index ad6d4d2..bc05307 100644
--- a/src/featureflagservice/test/featureflagservice_web/controllers/page_controller_test.exs
+++ b/src/featureflagservice/test/featureflagservice_web/controllers/page_controller_test.exs
@@ -1,16 +1,6 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
+
 
 defmodule FeatureflagserviceWeb.PageControllerTest do
   use FeatureflagserviceWeb.ConnCase
diff --git a/src/featureflagservice/test/featureflagservice_web/views/error_view_test.exs b/src/featureflagservice/test/featureflagservice_web/views/error_view_test.exs
index 0e2af72..9711b9a 100644
--- a/src/featureflagservice/test/featureflagservice_web/views/error_view_test.exs
+++ b/src/featureflagservice/test/featureflagservice_web/views/error_view_test.exs
@@ -1,16 +1,6 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
+
 
 defmodule FeatureflagserviceWeb.ErrorViewTest do
   use FeatureflagserviceWeb.ConnCase, async: true
diff --git a/src/featureflagservice/test/featureflagservice_web/views/layout_view_test.exs b/src/featureflagservice/test/featureflagservice_web/views/layout_view_test.exs
index 18f0566..641f4ac 100644
--- a/src/featureflagservice/test/featureflagservice_web/views/layout_view_test.exs
+++ b/src/featureflagservice/test/featureflagservice_web/views/layout_view_test.exs
@@ -1,16 +1,6 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
+
 
 defmodule FeatureflagserviceWeb.LayoutViewTest do
   use FeatureflagserviceWeb.ConnCase, async: true
diff --git a/src/featureflagservice/test/featureflagservice_web/views/page_view_test.exs b/src/featureflagservice/test/featureflagservice_web/views/page_view_test.exs
index 013ff99..48707ef 100644
--- a/src/featureflagservice/test/featureflagservice_web/views/page_view_test.exs
+++ b/src/featureflagservice/test/featureflagservice_web/views/page_view_test.exs
@@ -1,16 +1,6 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
+
 
 defmodule FeatureflagserviceWeb.PageViewTest do
   use FeatureflagserviceWeb.ConnCase, async: true
diff --git a/src/featureflagservice/test/support/conn_case.ex b/src/featureflagservice/test/support/conn_case.ex
index 68816ae..ffc8384 100644
--- a/src/featureflagservice/test/support/conn_case.ex
+++ b/src/featureflagservice/test/support/conn_case.ex
@@ -1,16 +1,6 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
+
 
 defmodule FeatureflagserviceWeb.ConnCase do
   @moduledoc """
diff --git a/src/featureflagservice/test/support/data_case.ex b/src/featureflagservice/test/support/data_case.ex
index 0353e8d..f908052 100644
--- a/src/featureflagservice/test/support/data_case.ex
+++ b/src/featureflagservice/test/support/data_case.ex
@@ -1,16 +1,6 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
+
 
 defmodule Featureflagservice.DataCase do
   @moduledoc """
diff --git a/src/featureflagservice/test/support/fixtures/feature_flags_fixtures.ex b/src/featureflagservice/test/support/fixtures/feature_flags_fixtures.ex
index 9d7c24a..58b77be 100644
--- a/src/featureflagservice/test/support/fixtures/feature_flags_fixtures.ex
+++ b/src/featureflagservice/test/support/fixtures/feature_flags_fixtures.ex
@@ -1,16 +1,6 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
+
 
 defmodule Featureflagservice.FeatureFlagsFixtures do
   @moduledoc """
diff --git a/src/featureflagservice/test/test_helper.exs b/src/featureflagservice/test/test_helper.exs
index 80becf7..83251b0 100644
--- a/src/featureflagservice/test/test_helper.exs
+++ b/src/featureflagservice/test/test_helper.exs
@@ -1,16 +1,6 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
+
 
 ExUnit.start()
 Ecto.Adapters.SQL.Sandbox.mode(Featureflagservice.Repo, :manual)
diff --git a/src/frauddetectionservice/Dockerfile b/src/frauddetectionservice/Dockerfile
index 76ee175..0e7e05e 100644
--- a/src/frauddetectionservice/Dockerfile
+++ b/src/frauddetectionservice/Dockerfile
@@ -1,16 +1,6 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
+
 
 FROM gradle:7-jdk17 AS builder
 
diff --git a/src/frauddetectionservice/build.gradle.kts b/src/frauddetectionservice/build.gradle.kts
index 0b7475c..edd1c1f 100644
--- a/src/frauddetectionservice/build.gradle.kts
+++ b/src/frauddetectionservice/build.gradle.kts
@@ -1,16 +1,3 @@
-// Copyright The OpenTelemetry Authors
-//
-// Licensed under the Apache License, Version 2.0 (the "License");
-// you may not use this file except in compliance with the License.
-// You may obtain a copy of the License at
-//
-//     http://www.apache.org/licenses/LICENSE-2.0
-//
-// Unless required by applicable law or agreed to in writing, software
-// distributed under the License is distributed on an "AS IS" BASIS,
-// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-// See the License for the specific language governing permissions and
-// limitations under the License.
 
 import org.jetbrains.kotlin.gradle.tasks.KotlinCompile
 import com.google.protobuf.gradle.*
diff --git a/src/frauddetectionservice/settings.gradle.kts b/src/frauddetectionservice/settings.gradle.kts
index 8d16f5b..1c98d2e 100644
--- a/src/frauddetectionservice/settings.gradle.kts
+++ b/src/frauddetectionservice/settings.gradle.kts
@@ -1,16 +1,3 @@
-// Copyright The OpenTelemetry Authors
-//
-// Licensed under the Apache License, Version 2.0 (the "License");
-// you may not use this file except in compliance with the License.
-// You may obtain a copy of the License at
-//
-//     http://www.apache.org/licenses/LICENSE-2.0
-//
-// Unless required by applicable law or agreed to in writing, software
-// distributed under the License is distributed on an "AS IS" BASIS,
-// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-// See the License for the specific language governing permissions and
-// limitations under the License.
 
 rootProject.name = "frauddetectionservice"
 
diff --git a/src/frauddetectionservice/src/main/kotlin/frauddetectionservice/main.kt b/src/frauddetectionservice/src/main/kotlin/frauddetectionservice/main.kt
index 48b2b0b..6db2976 100644
--- a/src/frauddetectionservice/src/main/kotlin/frauddetectionservice/main.kt
+++ b/src/frauddetectionservice/src/main/kotlin/frauddetectionservice/main.kt
@@ -1,16 +1,3 @@
-// Copyright The OpenTelemetry Authors
-//
-// Licensed under the Apache License, Version 2.0 (the "License");
-// you may not use this file except in compliance with the License.
-// You may obtain a copy of the License at
-//
-//     http://www.apache.org/licenses/LICENSE-2.0
-//
-// Unless required by applicable law or agreed to in writing, software
-// distributed under the License is distributed on an "AS IS" BASIS,
-// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-// See the License for the specific language governing permissions and
-// limitations under the License.
 
 package frauddetectionservice
 
diff --git a/src/frontend/Dockerfile b/src/frontend/Dockerfile
index 1bfb401..ca4ea57 100644
--- a/src/frontend/Dockerfile
+++ b/src/frontend/Dockerfile
@@ -1,16 +1,6 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
+
 
 FROM node:18-alpine AS deps
 RUN apk add --no-cache libc6-compat
diff --git a/src/frontend/components/Ad/Ad.styled.ts b/src/frontend/components/Ad/Ad.styled.ts
index a632d5e..137b21b 100644
--- a/src/frontend/components/Ad/Ad.styled.ts
+++ b/src/frontend/components/Ad/Ad.styled.ts
@@ -1,16 +1,5 @@
 // Copyright The OpenTelemetry Authors
-//
-// Licensed under the Apache License, Version 2.0 (the "License");
-// you may not use this file except in compliance with the License.
-// You may obtain a copy of the License at
-//
-//     http://www.apache.org/licenses/LICENSE-2.0
-//
-// Unless required by applicable law or agreed to in writing, software
-// distributed under the License is distributed on an "AS IS" BASIS,
-// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-// See the License for the specific language governing permissions and
-// limitations under the License.
+// SPDX-License-Identifier: Apache-2.0
 
 import styled from 'styled-components';
 import RouterLink from 'next/link';
diff --git a/src/frontend/components/Ad/Ad.tsx b/src/frontend/components/Ad/Ad.tsx
index ec09675..9e59d1f 100644
--- a/src/frontend/components/Ad/Ad.tsx
+++ b/src/frontend/components/Ad/Ad.tsx
@@ -1,16 +1,5 @@
 // Copyright The OpenTelemetry Authors
-//
-// Licensed under the Apache License, Version 2.0 (the "License");
-// you may not use this file except in compliance with the License.
-// You may obtain a copy of the License at
-//
-//     http://www.apache.org/licenses/LICENSE-2.0
-//
-// Unless required by applicable law or agreed to in writing, software
-// distributed under the License is distributed on an "AS IS" BASIS,
-// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-// See the License for the specific language governing permissions and
-// limitations under the License.
+// SPDX-License-Identifier: Apache-2.0
 
 import { CypressFields } from '../../utils/Cypress';
 import { useAd } from '../../providers/Ad.provider';
diff --git a/src/frontend/components/Ad/index.ts b/src/frontend/components/Ad/index.ts
index 446487d..b64732f 100644
--- a/src/frontend/components/Ad/index.ts
+++ b/src/frontend/components/Ad/index.ts
@@ -1,15 +1,4 @@
 // Copyright The OpenTelemetry Authors
-//
-// Licensed under the Apache License, Version 2.0 (the "License");
-// you may not use this file except in compliance with the License.
-// You may obtain a copy of the License at
-//
-//     http://www.apache.org/licenses/LICENSE-2.0
-//
-// Unless required by applicable law or agreed to in writing, software
-// distributed under the License is distributed on an "AS IS" BASIS,
-// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-// See the License for the specific language governing permissions and
-// limitations under the License.
+// SPDX-License-Identifier: Apache-2.0
 
 export { default } from './Ad';
diff --git a/src/frontend/components/Banner/Banner.styled.ts b/src/frontend/components/Banner/Banner.styled.ts
index 4b09c14..6aa7d62 100644
--- a/src/frontend/components/Banner/Banner.styled.ts
+++ b/src/frontend/components/Banner/Banner.styled.ts
@@ -1,16 +1,5 @@
 // Copyright The OpenTelemetry Authors
-//
-// Licensed under the Apache License, Version 2.0 (the "License");
-// you may not use this file except in compliance with the License.
-// You may obtain a copy of the License at
-//
-//     http://www.apache.org/licenses/LICENSE-2.0
-//
-// Unless required by applicable law or agreed to in writing, software
-// distributed under the License is distributed on an "AS IS" BASIS,
-// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-// See the License for the specific language governing permissions and
-// limitations under the License.
+// SPDX-License-Identifier: Apache-2.0
 
 import styled from 'styled-components';
 import Button from '../Button';
diff --git a/src/frontend/components/Banner/Banner.tsx b/src/frontend/components/Banner/Banner.tsx
index f410609..f2d75e2 100644
--- a/src/frontend/components/Banner/Banner.tsx
+++ b/src/frontend/components/Banner/Banner.tsx
@@ -1,16 +1,5 @@
 // Copyright The OpenTelemetry Authors
-//
-// Licensed under the Apache License, Version 2.0 (the "License");
-// you may not use this file except in compliance with the License.
-// You may obtain a copy of the License at
-//
-//     http://www.apache.org/licenses/LICENSE-2.0
-//
-// Unless required by applicable law or agreed to in writing, software
-// distributed under the License is distributed on an "AS IS" BASIS,
-// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-// See the License for the specific language governing permissions and
-// limitations under the License.
+// SPDX-License-Identifier: Apache-2.0
 
 import Link from 'next/link';
 import * as S from './Banner.styled';
diff --git a/src/frontend/components/Banner/index.ts b/src/frontend/components/Banner/index.ts
index fdb2a2b..1d87266 100644
--- a/src/frontend/components/Banner/index.ts
+++ b/src/frontend/components/Banner/index.ts
@@ -1,15 +1,4 @@
 // Copyright The OpenTelemetry Authors
-//
-// Licensed under the Apache License, Version 2.0 (the "License");
-// you may not use this file except in compliance with the License.
-// You may obtain a copy of the License at
-//
-//     http://www.apache.org/licenses/LICENSE-2.0
-//
-// Unless required by applicable law or agreed to in writing, software
-// distributed under the License is distributed on an "AS IS" BASIS,
-// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-// See the License for the specific language governing permissions and
-// limitations under the License.
+// SPDX-License-Identifier: Apache-2.0
 
 export { default } from './Banner';
diff --git a/src/frontend/components/Button/Button.tsx b/src/frontend/components/Button/Button.tsx
index 4a11e83..0807750 100644
--- a/src/frontend/components/Button/Button.tsx
+++ b/src/frontend/components/Button/Button.tsx
@@ -1,16 +1,5 @@
 // Copyright The OpenTelemetry Authors
-//
-// Licensed under the Apache License, Version 2.0 (the "License");
-// you may not use this file except in compliance with the License.
-// You may obtain a copy of the License at
-//
-//     http://www.apache.org/licenses/LICENSE-2.0
-//
-// Unless required by applicable law or agreed to in writing, software
-// distributed under the License is distributed on an "AS IS" BASIS,
-// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-// See the License for the specific language governing permissions and
-// limitations under the License.
+// SPDX-License-Identifier: Apache-2.0
 
 import styled, { css } from 'styled-components';
 
diff --git a/src/frontend/components/Button/index.ts b/src/frontend/components/Button/index.ts
index c4f9e21..0af447b 100644
--- a/src/frontend/components/Button/index.ts
+++ b/src/frontend/components/Button/index.ts
@@ -1,15 +1,4 @@
 // Copyright The OpenTelemetry Authors
-//
-// Licensed under the Apache License, Version 2.0 (the "License");
-// you may not use this file except in compliance with the License.
-// You may obtain a copy of the License at
-//
-//     http://www.apache.org/licenses/LICENSE-2.0
-//
-// Unless required by applicable law or agreed to in writing, software
-// distributed under the License is distributed on an "AS IS" BASIS,
-// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-// See the License for the specific language governing permissions and
-// limitations under the License.
+// SPDX-License-Identifier: Apache-2.0
 
 export { default } from './Button';
diff --git a/src/frontend/components/Cart/CartDetail.tsx b/src/frontend/components/Cart/CartDetail.tsx
index 7fd2550..4d777e4 100644
--- a/src/frontend/components/Cart/CartDetail.tsx
+++ b/src/frontend/components/Cart/CartDetail.tsx
@@ -1,16 +1,5 @@
 // Copyright The OpenTelemetry Authors
-//
-// Licensed under the Apache License, Version 2.0 (the "License");
-// you may not use this file except in compliance with the License.
-// You may obtain a copy of the License at
-//
-//     http://www.apache.org/licenses/LICENSE-2.0
-//
-// Unless required by applicable law or agreed to in writing, software
-// distributed under the License is distributed on an "AS IS" BASIS,
-// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-// See the License for the specific language governing permissions and
-// limitations under the License.
+// SPDX-License-Identifier: Apache-2.0
 
 import { useRouter } from 'next/router';
 import { useCallback } from 'react';
diff --git a/src/frontend/components/Cart/EmptyCart.tsx b/src/frontend/components/Cart/EmptyCart.tsx
index bfb09bb..70f403f 100644
--- a/src/frontend/components/Cart/EmptyCart.tsx
+++ b/src/frontend/components/Cart/EmptyCart.tsx
@@ -1,16 +1,5 @@
 // Copyright The OpenTelemetry Authors
-//
-// Licensed under the Apache License, Version 2.0 (the "License");
-// you may not use this file except in compliance with the License.
-// You may obtain a copy of the License at
-//
-//     http://www.apache.org/licenses/LICENSE-2.0
-//
-// Unless required by applicable law or agreed to in writing, software
-// distributed under the License is distributed on an "AS IS" BASIS,
-// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-// See the License for the specific language governing permissions and
-// limitations under the License.
+// SPDX-License-Identifier: Apache-2.0
 
 import Link from 'next/link';
 import Button from '../Button';
diff --git a/src/frontend/components/CartDropdown/CartDropdown.styled.ts b/src/frontend/components/CartDropdown/CartDropdown.styled.ts
index 4123ef4..a39c760 100644
--- a/src/frontend/components/CartDropdown/CartDropdown.styled.ts
+++ b/src/frontend/components/CartDropdown/CartDropdown.styled.ts
@@ -1,16 +1,5 @@
 // Copyright The OpenTelemetry Authors
-//
-// Licensed under the Apache License, Version 2.0 (the "License");
-// you may not use this file except in compliance with the License.
-// You may obtain a copy of the License at
-//
-//     http://www.apache.org/licenses/LICENSE-2.0
-//
-// Unless required by applicable law or agreed to in writing, software
-// distributed under the License is distributed on an "AS IS" BASIS,
-// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-// See the License for the specific language governing permissions and
-// limitations under the License.
+// SPDX-License-Identifier: Apache-2.0
 
 import Image from 'next/image';
 import styled from 'styled-components';
diff --git a/src/frontend/components/CartDropdown/CartDropdown.tsx b/src/frontend/components/CartDropdown/CartDropdown.tsx
index 419b63d..bb010e7 100644
--- a/src/frontend/components/CartDropdown/CartDropdown.tsx
+++ b/src/frontend/components/CartDropdown/CartDropdown.tsx
@@ -1,16 +1,5 @@
 // Copyright The OpenTelemetry Authors
-//
-// Licensed under the Apache License, Version 2.0 (the "License");
-// you may not use this file except in compliance with the License.
-// You may obtain a copy of the License at
-//
-//     http://www.apache.org/licenses/LICENSE-2.0
-//
-// Unless required by applicable law or agreed to in writing, software
-// distributed under the License is distributed on an "AS IS" BASIS,
-// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-// See the License for the specific language governing permissions and
-// limitations under the License.
+// SPDX-License-Identifier: Apache-2.0
 
 import Link from 'next/link';
 import { useEffect, useRef } from 'react';
diff --git a/src/frontend/components/CartDropdown/index.ts b/src/frontend/components/CartDropdown/index.ts
index c7f1c5e..559fff3 100644
--- a/src/frontend/components/CartDropdown/index.ts
+++ b/src/frontend/components/CartDropdown/index.ts
@@ -1,15 +1,4 @@
 // Copyright The OpenTelemetry Authors
-//
-// Licensed under the Apache License, Version 2.0 (the "License");
-// you may not use this file except in compliance with the License.
-// You may obtain a copy of the License at
-//
-//     http://www.apache.org/licenses/LICENSE-2.0
-//
-// Unless required by applicable law or agreed to in writing, software
-// distributed under the License is distributed on an "AS IS" BASIS,
-// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-// See the License for the specific language governing permissions and
-// limitations under the License.
+// SPDX-License-Identifier: Apache-2.0
 
 export { default } from './CartDropdown';
diff --git a/src/frontend/components/CartIcon/CartIcon.styled.ts b/src/frontend/components/CartIcon/CartIcon.styled.ts
index 2b28bfd..12011a6 100644
--- a/src/frontend/components/CartIcon/CartIcon.styled.ts
+++ b/src/frontend/components/CartIcon/CartIcon.styled.ts
@@ -1,16 +1,5 @@
 // Copyright The OpenTelemetry Authors
-//
-// Licensed under the Apache License, Version 2.0 (the "License");
-// you may not use this file except in compliance with the License.
-// You may obtain a copy of the License at
-//
-//     http://www.apache.org/licenses/LICENSE-2.0
-//
-// Unless required by applicable law or agreed to in writing, software
-// distributed under the License is distributed on an "AS IS" BASIS,
-// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-// See the License for the specific language governing permissions and
-// limitations under the License.
+// SPDX-License-Identifier: Apache-2.0
 
 import Image from 'next/image';
 import styled from 'styled-components';
diff --git a/src/frontend/components/CartIcon/CartIcon.tsx b/src/frontend/components/CartIcon/CartIcon.tsx
index e65baad..33265ba 100644
--- a/src/frontend/components/CartIcon/CartIcon.tsx
+++ b/src/frontend/components/CartIcon/CartIcon.tsx
@@ -1,16 +1,5 @@
 // Copyright The OpenTelemetry Authors
-//
-// Licensed under the Apache License, Version 2.0 (the "License");
-// you may not use this file except in compliance with the License.
-// You may obtain a copy of the License at
-//
-//     http://www.apache.org/licenses/LICENSE-2.0
-//
-// Unless required by applicable law or agreed to in writing, software
-// distributed under the License is distributed on an "AS IS" BASIS,
-// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-// See the License for the specific language governing permissions and
-// limitations under the License.
+// SPDX-License-Identifier: Apache-2.0
 
 import { useState } from 'react';
 import { CypressFields } from '../../utils/Cypress';
diff --git a/src/frontend/components/CartIcon/index.ts b/src/frontend/components/CartIcon/index.ts
index 3a34194..ffb59cc 100644
--- a/src/frontend/components/CartIcon/index.ts
+++ b/src/frontend/components/CartIcon/index.ts
@@ -1,15 +1,4 @@
 // Copyright The OpenTelemetry Authors
-//
-// Licensed under the Apache License, Version 2.0 (the "License");
-// you may not use this file except in compliance with the License.
-// You may obtain a copy of the License at
-//
-//     http://www.apache.org/licenses/LICENSE-2.0
-//
-// Unless required by applicable law or agreed to in writing, software
-// distributed under the License is distributed on an "AS IS" BASIS,
-// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-// See the License for the specific language governing permissions and
-// limitations under the License.
+// SPDX-License-Identifier: Apache-2.0
 
 export { default } from './CartIcon';
diff --git a/src/frontend/components/CartItems/CartItem.tsx b/src/frontend/components/CartItems/CartItem.tsx
index 854a537..e8cdf4e 100644
--- a/src/frontend/components/CartItems/CartItem.tsx
+++ b/src/frontend/components/CartItems/CartItem.tsx
@@ -1,16 +1,5 @@
 // Copyright The OpenTelemetry Authors
-//
-// Licensed under the Apache License, Version 2.0 (the "License");
-// you may not use this file except in compliance with the License.
-// You may obtain a copy of the License at
-//
-//     http://www.apache.org/licenses/LICENSE-2.0
-//
-// Unless required by applicable law or agreed to in writing, software
-// distributed under the License is distributed on an "AS IS" BASIS,
-// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-// See the License for the specific language governing permissions and
-// limitations under the License.
+// SPDX-License-Identifier: Apache-2.0
 
 import Link from 'next/link';
 import { Product } from '../../protos/demo';
diff --git a/src/frontend/components/CartItems/CartItems.styled.ts b/src/frontend/components/CartItems/CartItems.styled.ts
index cfbddbd..a1a5fbc 100644
--- a/src/frontend/components/CartItems/CartItems.styled.ts
+++ b/src/frontend/components/CartItems/CartItems.styled.ts
@@ -1,16 +1,5 @@
 // Copyright The OpenTelemetry Authors
-//
-// Licensed under the Apache License, Version 2.0 (the "License");
-// you may not use this file except in compliance with the License.
-// You may obtain a copy of the License at
-//
-//     http://www.apache.org/licenses/LICENSE-2.0
-//
-// Unless required by applicable law or agreed to in writing, software
-// distributed under the License is distributed on an "AS IS" BASIS,
-// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-// See the License for the specific language governing permissions and
-// limitations under the License.
+// SPDX-License-Identifier: Apache-2.0
 
 import styled from 'styled-components';
 
diff --git a/src/frontend/components/CartItems/CartItems.tsx b/src/frontend/components/CartItems/CartItems.tsx
index bef722f..922a0da 100644
--- a/src/frontend/components/CartItems/CartItems.tsx
+++ b/src/frontend/components/CartItems/CartItems.tsx
@@ -1,16 +1,5 @@
 // Copyright The OpenTelemetry Authors
-//
-// Licensed under the Apache License, Version 2.0 (the "License");
-// you may not use this file except in compliance with the License.
-// You may obtain a copy of the License at
-//
-//     http://www.apache.org/licenses/LICENSE-2.0
-//
-// Unless required by applicable law or agreed to in writing, software
-// distributed under the License is distributed on an "AS IS" BASIS,
-// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-// See the License for the specific language governing permissions and
-// limitations under the License.
+// SPDX-License-Identifier: Apache-2.0
 
 import { useMemo } from 'react';
 import { useQuery } from 'react-query';
diff --git a/src/frontend/components/CartItems/index.ts b/src/frontend/components/CartItems/index.ts
index da0ba68..ad419fa 100644
--- a/src/frontend/components/CartItems/index.ts
+++ b/src/frontend/components/CartItems/index.ts
@@ -1,15 +1,4 @@
 // Copyright The OpenTelemetry Authors
-//
-// Licensed under the Apache License, Version 2.0 (the "License");
-// you may not use this file except in compliance with the License.
-// You may obtain a copy of the License at
-//
-//     http://www.apache.org/licenses/LICENSE-2.0
-//
-// Unless required by applicable law or agreed to in writing, software
-// distributed under the License is distributed on an "AS IS" BASIS,
-// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-// See the License for the specific language governing permissions and
-// limitations under the License.
+// SPDX-License-Identifier: Apache-2.0
 
 export { default } from './CartItems';
diff --git a/src/frontend/components/CheckoutForm/CheckoutForm.styled.ts b/src/frontend/components/CheckoutForm/CheckoutForm.styled.ts
index b569452..c11ebc5 100644
--- a/src/frontend/components/CheckoutForm/CheckoutForm.styled.ts
+++ b/src/frontend/components/CheckoutForm/CheckoutForm.styled.ts
@@ -1,16 +1,5 @@
 // Copyright The OpenTelemetry Authors
-//
-// Licensed under the Apache License, Version 2.0 (the "License");
-// you may not use this file except in compliance with the License.
-// You may obtain a copy of the License at
-//
-//     http://www.apache.org/licenses/LICENSE-2.0
-//
-// Unless required by applicable law or agreed to in writing, software
-// distributed under the License is distributed on an "AS IS" BASIS,
-// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-// See the License for the specific language governing permissions and
-// limitations under the License.
+// SPDX-License-Identifier: Apache-2.0
 
 import styled from 'styled-components';
 import Button from '../Button';
diff --git a/src/frontend/components/CheckoutForm/CheckoutForm.tsx b/src/frontend/components/CheckoutForm/CheckoutForm.tsx
index 5671872..1548e14 100644
--- a/src/frontend/components/CheckoutForm/CheckoutForm.tsx
+++ b/src/frontend/components/CheckoutForm/CheckoutForm.tsx
@@ -1,16 +1,5 @@
 // Copyright The OpenTelemetry Authors
-//
-// Licensed under the Apache License, Version 2.0 (the "License");
-// you may not use this file except in compliance with the License.
-// You may obtain a copy of the License at
-//
-//     http://www.apache.org/licenses/LICENSE-2.0
-//
-// Unless required by applicable law or agreed to in writing, software
-// distributed under the License is distributed on an "AS IS" BASIS,
-// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-// See the License for the specific language governing permissions and
-// limitations under the License.
+// SPDX-License-Identifier: Apache-2.0
 
 import Link from 'next/link';
 import { useCallback, useState } from 'react';
diff --git a/src/frontend/components/CheckoutForm/index.ts b/src/frontend/components/CheckoutForm/index.ts
index 179f24d..897f43b 100644
--- a/src/frontend/components/CheckoutForm/index.ts
+++ b/src/frontend/components/CheckoutForm/index.ts
@@ -1,15 +1,4 @@
 // Copyright The OpenTelemetry Authors
-//
-// Licensed under the Apache License, Version 2.0 (the "License");
-// you may not use this file except in compliance with the License.
-// You may obtain a copy of the License at
-//
-//     http://www.apache.org/licenses/LICENSE-2.0
-//
-// Unless required by applicable law or agreed to in writing, software
-// distributed under the License is distributed on an "AS IS" BASIS,
-// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-// See the License for the specific language governing permissions and
-// limitations under the License.
+// SPDX-License-Identifier: Apache-2.0
 
 export { default } from './CheckoutForm';
diff --git a/src/frontend/components/CheckoutItem/CheckoutItem.styled.ts b/src/frontend/components/CheckoutItem/CheckoutItem.styled.ts
index ad75a72..1b2d988 100644
--- a/src/frontend/components/CheckoutItem/CheckoutItem.styled.ts
+++ b/src/frontend/components/CheckoutItem/CheckoutItem.styled.ts
@@ -1,16 +1,5 @@
 // Copyright The OpenTelemetry Authors
-//
-// Licensed under the Apache License, Version 2.0 (the "License");
-// you may not use this file except in compliance with the License.
-// You may obtain a copy of the License at
-//
-//     http://www.apache.org/licenses/LICENSE-2.0
-//
-// Unless required by applicable law or agreed to in writing, software
-// distributed under the License is distributed on an "AS IS" BASIS,
-// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-// See the License for the specific language governing permissions and
-// limitations under the License.
+// SPDX-License-Identifier: Apache-2.0
 
 import Image from 'next/image';
 import styled from 'styled-components';
diff --git a/src/frontend/components/CheckoutItem/CheckoutItem.tsx b/src/frontend/components/CheckoutItem/CheckoutItem.tsx
index 6f5c986..027dba3 100644
--- a/src/frontend/components/CheckoutItem/CheckoutItem.tsx
+++ b/src/frontend/components/CheckoutItem/CheckoutItem.tsx
@@ -1,16 +1,5 @@
 // Copyright The OpenTelemetry Authors
-//
-// Licensed under the Apache License, Version 2.0 (the "License");
-// you may not use this file except in compliance with the License.
-// You may obtain a copy of the License at
-//
-//     http://www.apache.org/licenses/LICENSE-2.0
-//
-// Unless required by applicable law or agreed to in writing, software
-// distributed under the License is distributed on an "AS IS" BASIS,
-// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-// See the License for the specific language governing permissions and
-// limitations under the License.
+// SPDX-License-Identifier: Apache-2.0
 
 import Image from 'next/image';
 import { useState } from 'react';
diff --git a/src/frontend/components/CheckoutItem/index.ts b/src/frontend/components/CheckoutItem/index.ts
index b57fc0d..f4c6b78 100644
--- a/src/frontend/components/CheckoutItem/index.ts
+++ b/src/frontend/components/CheckoutItem/index.ts
@@ -1,15 +1,4 @@
 // Copyright The OpenTelemetry Authors
-//
-// Licensed under the Apache License, Version 2.0 (the "License");
-// you may not use this file except in compliance with the License.
-// You may obtain a copy of the License at
-//
-//     http://www.apache.org/licenses/LICENSE-2.0
-//
-// Unless required by applicable law or agreed to in writing, software
-// distributed under the License is distributed on an "AS IS" BASIS,
-// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-// See the License for the specific language governing permissions and
-// limitations under the License.
+// SPDX-License-Identifier: Apache-2.0
 
 export { default } from './CheckoutItem';
diff --git a/src/frontend/components/CurrencySwitcher/CurrencySwitcher.styled.ts b/src/frontend/components/CurrencySwitcher/CurrencySwitcher.styled.ts
index 711a774..6ea0669 100644
--- a/src/frontend/components/CurrencySwitcher/CurrencySwitcher.styled.ts
+++ b/src/frontend/components/CurrencySwitcher/CurrencySwitcher.styled.ts
@@ -1,16 +1,5 @@
 // Copyright The OpenTelemetry Authors
-//
-// Licensed under the Apache License, Version 2.0 (the "License");
-// you may not use this file except in compliance with the License.
-// You may obtain a copy of the License at
-//
-//     http://www.apache.org/licenses/LICENSE-2.0
-//
-// Unless required by applicable law or agreed to in writing, software
-// distributed under the License is distributed on an "AS IS" BASIS,
-// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-// See the License for the specific language governing permissions and
-// limitations under the License.
+// SPDX-License-Identifier: Apache-2.0
 
 import styled from 'styled-components';
 
diff --git a/src/frontend/components/CurrencySwitcher/CurrencySwitcher.tsx b/src/frontend/components/CurrencySwitcher/CurrencySwitcher.tsx
index b5a4298..63b4405 100644
--- a/src/frontend/components/CurrencySwitcher/CurrencySwitcher.tsx
+++ b/src/frontend/components/CurrencySwitcher/CurrencySwitcher.tsx
@@ -1,16 +1,5 @@
 // Copyright The OpenTelemetry Authors
-//
-// Licensed under the Apache License, Version 2.0 (the "License");
-// you may not use this file except in compliance with the License.
-// You may obtain a copy of the License at
-//
-//     http://www.apache.org/licenses/LICENSE-2.0
-//
-// Unless required by applicable law or agreed to in writing, software
-// distributed under the License is distributed on an "AS IS" BASIS,
-// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-// See the License for the specific language governing permissions and
-// limitations under the License.
+// SPDX-License-Identifier: Apache-2.0
 
 import { useMemo } from 'react';
 import getSymbolFromCurrency from 'currency-symbol-map';
diff --git a/src/frontend/components/CurrencySwitcher/index.ts b/src/frontend/components/CurrencySwitcher/index.ts
index 1e9a7bb..3a0af9c 100644
--- a/src/frontend/components/CurrencySwitcher/index.ts
+++ b/src/frontend/components/CurrencySwitcher/index.ts
@@ -1,15 +1,4 @@
 // Copyright The OpenTelemetry Authors
-//
-// Licensed under the Apache License, Version 2.0 (the "License");
-// you may not use this file except in compliance with the License.
-// You may obtain a copy of the License at
-//
-//     http://www.apache.org/licenses/LICENSE-2.0
-//
-// Unless required by applicable law or agreed to in writing, software
-// distributed under the License is distributed on an "AS IS" BASIS,
-// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-// See the License for the specific language governing permissions and
-// limitations under the License.
+// SPDX-License-Identifier: Apache-2.0
 
 export { default } from './CurrencySwitcher';
diff --git a/src/frontend/components/Footer/Footer.styled.ts b/src/frontend/components/Footer/Footer.styled.ts
index 8a612ee..513039b 100644
--- a/src/frontend/components/Footer/Footer.styled.ts
+++ b/src/frontend/components/Footer/Footer.styled.ts
@@ -1,16 +1,5 @@
 // Copyright The OpenTelemetry Authors
-//
-// Licensed under the Apache License, Version 2.0 (the "License");
-// you may not use this file except in compliance with the License.
-// You may obtain a copy of the License at
-//
-//     http://www.apache.org/licenses/LICENSE-2.0
-//
-// Unless required by applicable law or agreed to in writing, software
-// distributed under the License is distributed on an "AS IS" BASIS,
-// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-// See the License for the specific language governing permissions and
-// limitations under the License.
+// SPDX-License-Identifier: Apache-2.0
 
 import styled from 'styled-components';
 
diff --git a/src/frontend/components/Footer/Footer.tsx b/src/frontend/components/Footer/Footer.tsx
index 92786d7..37d36ac 100644
--- a/src/frontend/components/Footer/Footer.tsx
+++ b/src/frontend/components/Footer/Footer.tsx
@@ -1,16 +1,5 @@
 // Copyright The OpenTelemetry Authors
-//
-// Licensed under the Apache License, Version 2.0 (the "License");
-// you may not use this file except in compliance with the License.
-// You may obtain a copy of the License at
-//
-//     http://www.apache.org/licenses/LICENSE-2.0
-//
-// Unless required by applicable law or agreed to in writing, software
-// distributed under the License is distributed on an "AS IS" BASIS,
-// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-// See the License for the specific language governing permissions and
-// limitations under the License.
+// SPDX-License-Identifier: Apache-2.0
 
 import { useEffect, useState } from 'react';
 import * as S from './Footer.styled';
diff --git a/src/frontend/components/Footer/index.ts b/src/frontend/components/Footer/index.ts
index a85a059..0961dac 100644
--- a/src/frontend/components/Footer/index.ts
+++ b/src/frontend/components/Footer/index.ts
@@ -1,15 +1,4 @@
 // Copyright The OpenTelemetry Authors
-//
-// Licensed under the Apache License, Version 2.0 (the "License");
-// you may not use this file except in compliance with the License.
-// You may obtain a copy of the License at
-//
-//     http://www.apache.org/licenses/LICENSE-2.0
-//
-// Unless required by applicable law or agreed to in writing, software
-// distributed under the License is distributed on an "AS IS" BASIS,
-// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-// See the License for the specific language governing permissions and
-// limitations under the License.
+// SPDX-License-Identifier: Apache-2.0
 
 export { default } from './Footer';
diff --git a/src/frontend/components/Header/Header.styled.ts b/src/frontend/components/Header/Header.styled.ts
index e5be797..3af78aa 100644
--- a/src/frontend/components/Header/Header.styled.ts
+++ b/src/frontend/components/Header/Header.styled.ts
@@ -1,16 +1,5 @@
 // Copyright The OpenTelemetry Authors
-//
-// Licensed under the Apache License, Version 2.0 (the "License");
-// you may not use this file except in compliance with the License.
-// You may obtain a copy of the License at
-//
-//     http://www.apache.org/licenses/LICENSE-2.0
-//
-// Unless required by applicable law or agreed to in writing, software
-// distributed under the License is distributed on an "AS IS" BASIS,
-// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-// See the License for the specific language governing permissions and
-// limitations under the License.
+// SPDX-License-Identifier: Apache-2.0
 
 import Link from 'next/link';
 import styled from 'styled-components';
diff --git a/src/frontend/components/Header/Header.tsx b/src/frontend/components/Header/Header.tsx
index 2a20374..10459da 100644
--- a/src/frontend/components/Header/Header.tsx
+++ b/src/frontend/components/Header/Header.tsx
@@ -1,16 +1,5 @@
 // Copyright The OpenTelemetry Authors
-//
-// Licensed under the Apache License, Version 2.0 (the "License");
-// you may not use this file except in compliance with the License.
-// You may obtain a copy of the License at
-//
-//     http://www.apache.org/licenses/LICENSE-2.0
-//
-// Unless required by applicable law or agreed to in writing, software
-// distributed under the License is distributed on an "AS IS" BASIS,
-// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-// See the License for the specific language governing permissions and
-// limitations under the License.
+// SPDX-License-Identifier: Apache-2.0
 
 import CartIcon from '../CartIcon';
 import CurrencySwitcher from '../CurrencySwitcher';
diff --git a/src/frontend/components/Header/index.ts b/src/frontend/components/Header/index.ts
index dd66f03..4afb2c7 100644
--- a/src/frontend/components/Header/index.ts
+++ b/src/frontend/components/Header/index.ts
@@ -1,15 +1,4 @@
 // Copyright The OpenTelemetry Authors
-//
-// Licensed under the Apache License, Version 2.0 (the "License");
-// you may not use this file except in compliance with the License.
-// You may obtain a copy of the License at
-//
-//     http://www.apache.org/licenses/LICENSE-2.0
-//
-// Unless required by applicable law or agreed to in writing, software
-// distributed under the License is distributed on an "AS IS" BASIS,
-// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-// See the License for the specific language governing permissions and
-// limitations under the License.
+// SPDX-License-Identifier: Apache-2.0
 
 export {default} from './Header';
diff --git a/src/frontend/components/Input/Input.styled.ts b/src/frontend/components/Input/Input.styled.ts
index 52c2494..d2078d1 100644
--- a/src/frontend/components/Input/Input.styled.ts
+++ b/src/frontend/components/Input/Input.styled.ts
@@ -1,16 +1,5 @@
 // Copyright The OpenTelemetry Authors
-//
-// Licensed under the Apache License, Version 2.0 (the "License");
-// you may not use this file except in compliance with the License.
-// You may obtain a copy of the License at
-//
-//     http://www.apache.org/licenses/LICENSE-2.0
-//
-// Unless required by applicable law or agreed to in writing, software
-// distributed under the License is distributed on an "AS IS" BASIS,
-// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-// See the License for the specific language governing permissions and
-// limitations under the License.
+// SPDX-License-Identifier: Apache-2.0
 
 import styled from 'styled-components';
 
diff --git a/src/frontend/components/Input/Input.tsx b/src/frontend/components/Input/Input.tsx
index e82b73e..14782b0 100644
--- a/src/frontend/components/Input/Input.tsx
+++ b/src/frontend/components/Input/Input.tsx
@@ -1,16 +1,5 @@
 // Copyright The OpenTelemetry Authors
-//
-// Licensed under the Apache License, Version 2.0 (the "License");
-// you may not use this file except in compliance with the License.
-// You may obtain a copy of the License at
-//
-//     http://www.apache.org/licenses/LICENSE-2.0
-//
-// Unless required by applicable law or agreed to in writing, software
-// distributed under the License is distributed on an "AS IS" BASIS,
-// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-// See the License for the specific language governing permissions and
-// limitations under the License.
+// SPDX-License-Identifier: Apache-2.0
 
 import { HTMLInputTypeAttribute, InputHTMLAttributes } from 'react';
 import * as S from './Input.styled';
diff --git a/src/frontend/components/Input/index.ts b/src/frontend/components/Input/index.ts
index 16d34b4..f1d0923 100644
--- a/src/frontend/components/Input/index.ts
+++ b/src/frontend/components/Input/index.ts
@@ -1,15 +1,4 @@
 // Copyright The OpenTelemetry Authors
-//
-// Licensed under the Apache License, Version 2.0 (the "License");
-// you may not use this file except in compliance with the License.
-// You may obtain a copy of the License at
-//
-//     http://www.apache.org/licenses/LICENSE-2.0
-//
-// Unless required by applicable law or agreed to in writing, software
-// distributed under the License is distributed on an "AS IS" BASIS,
-// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-// See the License for the specific language governing permissions and
-// limitations under the License.
+// SPDX-License-Identifier: Apache-2.0
 
 export {default} from './Input';
diff --git a/src/frontend/components/Layout/Layout.tsx b/src/frontend/components/Layout/Layout.tsx
index 4099ff7..f4e2da8 100644
--- a/src/frontend/components/Layout/Layout.tsx
+++ b/src/frontend/components/Layout/Layout.tsx
@@ -1,16 +1,5 @@
 // Copyright The OpenTelemetry Authors
-//
-// Licensed under the Apache License, Version 2.0 (the "License");
-// you may not use this file except in compliance with the License.
-// You may obtain a copy of the License at
-//
-//     http://www.apache.org/licenses/LICENSE-2.0
-//
-// Unless required by applicable law or agreed to in writing, software
-// distributed under the License is distributed on an "AS IS" BASIS,
-// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-// See the License for the specific language governing permissions and
-// limitations under the License.
+// SPDX-License-Identifier: Apache-2.0
 
 import Header from '../Header';
 
diff --git a/src/frontend/components/Layout/index.ts b/src/frontend/components/Layout/index.ts
index 9c1cfef..8812dad 100644
--- a/src/frontend/components/Layout/index.ts
+++ b/src/frontend/components/Layout/index.ts
@@ -1,15 +1,4 @@
 // Copyright The OpenTelemetry Authors
-//
-// Licensed under the Apache License, Version 2.0 (the "License");
-// you may not use this file except in compliance with the License.
-// You may obtain a copy of the License at
-//
-//     http://www.apache.org/licenses/LICENSE-2.0
-//
-// Unless required by applicable law or agreed to in writing, software
-// distributed under the License is distributed on an "AS IS" BASIS,
-// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-// See the License for the specific language governing permissions and
-// limitations under the License.
+// SPDX-License-Identifier: Apache-2.0
 
 export {default} from './Layout';
diff --git a/src/frontend/components/PlatformFlag/PlatformFlag.styled.ts b/src/frontend/components/PlatformFlag/PlatformFlag.styled.ts
index 072ebc7..3ac0733 100644
--- a/src/frontend/components/PlatformFlag/PlatformFlag.styled.ts
+++ b/src/frontend/components/PlatformFlag/PlatformFlag.styled.ts
@@ -1,16 +1,5 @@
 // Copyright The OpenTelemetry Authors
-//
-// Licensed under the Apache License, Version 2.0 (the "License");
-// you may not use this file except in compliance with the License.
-// You may obtain a copy of the License at
-//
-//     http://www.apache.org/licenses/LICENSE-2.0
-//
-// Unless required by applicable law or agreed to in writing, software
-// distributed under the License is distributed on an "AS IS" BASIS,
-// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-// See the License for the specific language governing permissions and
-// limitations under the License.
+// SPDX-License-Identifier: Apache-2.0
 
 import styled from 'styled-components';
 
diff --git a/src/frontend/components/PlatformFlag/PlatformFlag.tsx b/src/frontend/components/PlatformFlag/PlatformFlag.tsx
index 1968886..80a01ca 100644
--- a/src/frontend/components/PlatformFlag/PlatformFlag.tsx
+++ b/src/frontend/components/PlatformFlag/PlatformFlag.tsx
@@ -1,16 +1,5 @@
 // Copyright The OpenTelemetry Authors
-//
-// Licensed under the Apache License, Version 2.0 (the "License");
-// you may not use this file except in compliance with the License.
-// You may obtain a copy of the License at
-//
-//     http://www.apache.org/licenses/LICENSE-2.0
-//
-// Unless required by applicable law or agreed to in writing, software
-// distributed under the License is distributed on an "AS IS" BASIS,
-// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-// See the License for the specific language governing permissions and
-// limitations under the License.
+// SPDX-License-Identifier: Apache-2.0
 
 import * as S from './PlatformFlag.styled';
 
diff --git a/src/frontend/components/PlatformFlag/index.ts b/src/frontend/components/PlatformFlag/index.ts
index 17e5bf1..ea744bb 100644
--- a/src/frontend/components/PlatformFlag/index.ts
+++ b/src/frontend/components/PlatformFlag/index.ts
@@ -1,15 +1,4 @@
 // Copyright The OpenTelemetry Authors
-//
-// Licensed under the Apache License, Version 2.0 (the "License");
-// you may not use this file except in compliance with the License.
-// You may obtain a copy of the License at
-//
-//     http://www.apache.org/licenses/LICENSE-2.0
-//
-// Unless required by applicable law or agreed to in writing, software
-// distributed under the License is distributed on an "AS IS" BASIS,
-// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-// See the License for the specific language governing permissions and
-// limitations under the License.
+// SPDX-License-Identifier: Apache-2.0
 
 export { default } from './PlatformFlag';
diff --git a/src/frontend/components/ProductCard/ProductCard.styled.ts b/src/frontend/components/ProductCard/ProductCard.styled.ts
index 30deae8..f0cb4fa 100644
--- a/src/frontend/components/ProductCard/ProductCard.styled.ts
+++ b/src/frontend/components/ProductCard/ProductCard.styled.ts
@@ -1,16 +1,5 @@
 // Copyright The OpenTelemetry Authors
-//
-// Licensed under the Apache License, Version 2.0 (the "License");
-// you may not use this file except in compliance with the License.
-// You may obtain a copy of the License at
-//
-//     http://www.apache.org/licenses/LICENSE-2.0
-//
-// Unless required by applicable law or agreed to in writing, software
-// distributed under the License is distributed on an "AS IS" BASIS,
-// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-// See the License for the specific language governing permissions and
-// limitations under the License.
+// SPDX-License-Identifier: Apache-2.0
 
 import styled from 'styled-components';
 import RouterLink from 'next/link';
diff --git a/src/frontend/components/ProductCard/ProductCard.tsx b/src/frontend/components/ProductCard/ProductCard.tsx
index 2ea9eb1..8e5216f 100644
--- a/src/frontend/components/ProductCard/ProductCard.tsx
+++ b/src/frontend/components/ProductCard/ProductCard.tsx
@@ -1,16 +1,5 @@
 // Copyright The OpenTelemetry Authors
-//
-// Licensed under the Apache License, Version 2.0 (the "License");
-// you may not use this file except in compliance with the License.
-// You may obtain a copy of the License at
-//
-//     http://www.apache.org/licenses/LICENSE-2.0
-//
-// Unless required by applicable law or agreed to in writing, software
-// distributed under the License is distributed on an "AS IS" BASIS,
-// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-// See the License for the specific language governing permissions and
-// limitations under the License.
+// SPDX-License-Identifier: Apache-2.0
 
 import { CypressFields } from '../../utils/Cypress';
 import { Product } from '../../protos/demo';
diff --git a/src/frontend/components/ProductCard/index.ts b/src/frontend/components/ProductCard/index.ts
index cfb5a22..ba9de7a 100644
--- a/src/frontend/components/ProductCard/index.ts
+++ b/src/frontend/components/ProductCard/index.ts
@@ -1,15 +1,4 @@
 // Copyright The OpenTelemetry Authors
-//
-// Licensed under the Apache License, Version 2.0 (the "License");
-// you may not use this file except in compliance with the License.
-// You may obtain a copy of the License at
-//
-//     http://www.apache.org/licenses/LICENSE-2.0
-//
-// Unless required by applicable law or agreed to in writing, software
-// distributed under the License is distributed on an "AS IS" BASIS,
-// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-// See the License for the specific language governing permissions and
-// limitations under the License.
+// SPDX-License-Identifier: Apache-2.0
 
 export { default } from './ProductCard';
diff --git a/src/frontend/components/ProductList/ProductList.styled.ts b/src/frontend/components/ProductList/ProductList.styled.ts
index c9013f1..3776404 100644
--- a/src/frontend/components/ProductList/ProductList.styled.ts
+++ b/src/frontend/components/ProductList/ProductList.styled.ts
@@ -1,16 +1,5 @@
 // Copyright The OpenTelemetry Authors
-//
-// Licensed under the Apache License, Version 2.0 (the "License");
-// you may not use this file except in compliance with the License.
-// You may obtain a copy of the License at
-//
-//     http://www.apache.org/licenses/LICENSE-2.0
-//
-// Unless required by applicable law or agreed to in writing, software
-// distributed under the License is distributed on an "AS IS" BASIS,
-// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-// See the License for the specific language governing permissions and
-// limitations under the License.
+// SPDX-License-Identifier: Apache-2.0
 
 import styled from 'styled-components';
 
diff --git a/src/frontend/components/ProductList/ProductList.tsx b/src/frontend/components/ProductList/ProductList.tsx
index a24437b..8482028 100644
--- a/src/frontend/components/ProductList/ProductList.tsx
+++ b/src/frontend/components/ProductList/ProductList.tsx
@@ -1,16 +1,5 @@
 // Copyright The OpenTelemetry Authors
-//
-// Licensed under the Apache License, Version 2.0 (the "License");
-// you may not use this file except in compliance with the License.
-// You may obtain a copy of the License at
-//
-//     http://www.apache.org/licenses/LICENSE-2.0
-//
-// Unless required by applicable law or agreed to in writing, software
-// distributed under the License is distributed on an "AS IS" BASIS,
-// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-// See the License for the specific language governing permissions and
-// limitations under the License.
+// SPDX-License-Identifier: Apache-2.0
 
 import { CypressFields } from '../../utils/Cypress';
 import { Product } from '../../protos/demo';
diff --git a/src/frontend/components/ProductList/index.ts b/src/frontend/components/ProductList/index.ts
index c16d682..3ff921c 100644
--- a/src/frontend/components/ProductList/index.ts
+++ b/src/frontend/components/ProductList/index.ts
@@ -1,15 +1,4 @@
 // Copyright The OpenTelemetry Authors
-//
-// Licensed under the Apache License, Version 2.0 (the "License");
-// you may not use this file except in compliance with the License.
-// You may obtain a copy of the License at
-//
-//     http://www.apache.org/licenses/LICENSE-2.0
-//
-// Unless required by applicable law or agreed to in writing, software
-// distributed under the License is distributed on an "AS IS" BASIS,
-// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-// See the License for the specific language governing permissions and
-// limitations under the License.
+// SPDX-License-Identifier: Apache-2.0
 
 export { default } from './ProductList';
diff --git a/src/frontend/components/ProductPrice/ProductPrice.tsx b/src/frontend/components/ProductPrice/ProductPrice.tsx
index b9602a5..4e8baf1 100644
--- a/src/frontend/components/ProductPrice/ProductPrice.tsx
+++ b/src/frontend/components/ProductPrice/ProductPrice.tsx
@@ -1,16 +1,5 @@
 // Copyright The OpenTelemetry Authors
-//
-// Licensed under the Apache License, Version 2.0 (the "License");
-// you may not use this file except in compliance with the License.
-// You may obtain a copy of the License at
-//
-//     http://www.apache.org/licenses/LICENSE-2.0
-//
-// Unless required by applicable law or agreed to in writing, software
-// distributed under the License is distributed on an "AS IS" BASIS,
-// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-// See the License for the specific language governing permissions and
-// limitations under the License.
+// SPDX-License-Identifier: Apache-2.0
 
 import { useMemo } from 'react';
 import getSymbolFromCurrency from 'currency-symbol-map';
diff --git a/src/frontend/components/ProductPrice/index.ts b/src/frontend/components/ProductPrice/index.ts
index 8620aab..7bbda4a 100644
--- a/src/frontend/components/ProductPrice/index.ts
+++ b/src/frontend/components/ProductPrice/index.ts
@@ -1,15 +1,4 @@
 // Copyright The OpenTelemetry Authors
-//
-// Licensed under the Apache License, Version 2.0 (the "License");
-// you may not use this file except in compliance with the License.
-// You may obtain a copy of the License at
-//
-//     http://www.apache.org/licenses/LICENSE-2.0
-//
-// Unless required by applicable law or agreed to in writing, software
-// distributed under the License is distributed on an "AS IS" BASIS,
-// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-// See the License for the specific language governing permissions and
-// limitations under the License.
+// SPDX-License-Identifier: Apache-2.0
 
 export { default } from './ProductPrice';
diff --git a/src/frontend/components/Recommendations/Recommendations.styled.ts b/src/frontend/components/Recommendations/Recommendations.styled.ts
index 481c86d..1667be4 100644
--- a/src/frontend/components/Recommendations/Recommendations.styled.ts
+++ b/src/frontend/components/Recommendations/Recommendations.styled.ts
@@ -1,16 +1,5 @@
 // Copyright The OpenTelemetry Authors
-//
-// Licensed under the Apache License, Version 2.0 (the "License");
-// you may not use this file except in compliance with the License.
-// You may obtain a copy of the License at
-//
-//     http://www.apache.org/licenses/LICENSE-2.0
-//
-// Unless required by applicable law or agreed to in writing, software
-// distributed under the License is distributed on an "AS IS" BASIS,
-// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-// See the License for the specific language governing permissions and
-// limitations under the License.
+// SPDX-License-Identifier: Apache-2.0
 
 import styled from 'styled-components';
 
diff --git a/src/frontend/components/Recommendations/Recommendations.tsx b/src/frontend/components/Recommendations/Recommendations.tsx
index 8d0d9b7..e238988 100644
--- a/src/frontend/components/Recommendations/Recommendations.tsx
+++ b/src/frontend/components/Recommendations/Recommendations.tsx
@@ -1,16 +1,5 @@
 // Copyright The OpenTelemetry Authors
-//
-// Licensed under the Apache License, Version 2.0 (the "License");
-// you may not use this file except in compliance with the License.
-// You may obtain a copy of the License at
-//
-//     http://www.apache.org/licenses/LICENSE-2.0
-//
-// Unless required by applicable law or agreed to in writing, software
-// distributed under the License is distributed on an "AS IS" BASIS,
-// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-// See the License for the specific language governing permissions and
-// limitations under the License.
+// SPDX-License-Identifier: Apache-2.0
 
 import { CypressFields } from '../../utils/Cypress';
 import { useAd } from '../../providers/Ad.provider';
diff --git a/src/frontend/components/Recommendations/index.ts b/src/frontend/components/Recommendations/index.ts
index 322f692..625afa5 100644
--- a/src/frontend/components/Recommendations/index.ts
+++ b/src/frontend/components/Recommendations/index.ts
@@ -1,15 +1,4 @@
 // Copyright The OpenTelemetry Authors
-//
-// Licensed under the Apache License, Version 2.0 (the "License");
-// you may not use this file except in compliance with the License.
-// You may obtain a copy of the License at
-//
-//     http://www.apache.org/licenses/LICENSE-2.0
-//
-// Unless required by applicable law or agreed to in writing, software
-// distributed under the License is distributed on an "AS IS" BASIS,
-// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-// See the License for the specific language governing permissions and
-// limitations under the License.
+// SPDX-License-Identifier: Apache-2.0
 
 export { default } from './Recommendations';
diff --git a/src/frontend/components/Select/Select.styled.ts b/src/frontend/components/Select/Select.styled.ts
index 6fc61ca..319ee59 100644
--- a/src/frontend/components/Select/Select.styled.ts
+++ b/src/frontend/components/Select/Select.styled.ts
@@ -1,16 +1,5 @@
 // Copyright The OpenTelemetry Authors
-//
-// Licensed under the Apache License, Version 2.0 (the "License");
-// you may not use this file except in compliance with the License.
-// You may obtain a copy of the License at
-//
-//     http://www.apache.org/licenses/LICENSE-2.0
-//
-// Unless required by applicable law or agreed to in writing, software
-// distributed under the License is distributed on an "AS IS" BASIS,
-// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-// See the License for the specific language governing permissions and
-// limitations under the License.
+// SPDX-License-Identifier: Apache-2.0
 
 import styled from 'styled-components';
 
diff --git a/src/frontend/components/Select/Select.tsx b/src/frontend/components/Select/Select.tsx
index 4c51165..a1f7e2a 100644
--- a/src/frontend/components/Select/Select.tsx
+++ b/src/frontend/components/Select/Select.tsx
@@ -1,16 +1,5 @@
 // Copyright The OpenTelemetry Authors
-//
-// Licensed under the Apache License, Version 2.0 (the "License");
-// you may not use this file except in compliance with the License.
-// You may obtain a copy of the License at
-//
-//     http://www.apache.org/licenses/LICENSE-2.0
-//
-// Unless required by applicable law or agreed to in writing, software
-// distributed under the License is distributed on an "AS IS" BASIS,
-// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-// See the License for the specific language governing permissions and
-// limitations under the License.
+// SPDX-License-Identifier: Apache-2.0
 
 import { InputHTMLAttributes } from 'react';
 import * as S from './Select.styled';
diff --git a/src/frontend/components/Select/index.ts b/src/frontend/components/Select/index.ts
index 223396b..2f51fcd 100644
--- a/src/frontend/components/Select/index.ts
+++ b/src/frontend/components/Select/index.ts
@@ -1,15 +1,4 @@
 // Copyright The OpenTelemetry Authors
-//
-// Licensed under the Apache License, Version 2.0 (the "License");
-// you may not use this file except in compliance with the License.
-// You may obtain a copy of the License at
-//
-//     http://www.apache.org/licenses/LICENSE-2.0
-//
-// Unless required by applicable law or agreed to in writing, software
-// distributed under the License is distributed on an "AS IS" BASIS,
-// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-// See the License for the specific language governing permissions and
-// limitations under the License.
+// SPDX-License-Identifier: Apache-2.0
 
 export { default } from './Select';
diff --git a/src/frontend/cypress.config.ts b/src/frontend/cypress.config.ts
index da92bad..ab1e082 100644
--- a/src/frontend/cypress.config.ts
+++ b/src/frontend/cypress.config.ts
@@ -1,16 +1,5 @@
 // Copyright The OpenTelemetry Authors
-//
-// Licensed under the Apache License, Version 2.0 (the "License");
-// you may not use this file except in compliance with the License.
-// You may obtain a copy of the License at
-//
-//     http://www.apache.org/licenses/LICENSE-2.0
-//
-// Unless required by applicable law or agreed to in writing, software
-// distributed under the License is distributed on an "AS IS" BASIS,
-// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-// See the License for the specific language governing permissions and
-// limitations under the License.
+// SPDX-License-Identifier: Apache-2.0
 
 import { defineConfig } from 'cypress';
 import dotEnv from 'dotenv';
diff --git a/src/frontend/cypress/e2e/Checkout.cy.ts b/src/frontend/cypress/e2e/Checkout.cy.ts
index fcd8ff9..1feca43 100644
--- a/src/frontend/cypress/e2e/Checkout.cy.ts
+++ b/src/frontend/cypress/e2e/Checkout.cy.ts
@@ -1,16 +1,5 @@
 // Copyright The OpenTelemetry Authors
-//
-// Licensed under the Apache License, Version 2.0 (the "License");
-// you may not use this file except in compliance with the License.
-// You may obtain a copy of the License at
-//
-//     http://www.apache.org/licenses/LICENSE-2.0
-//
-// Unless required by applicable law or agreed to in writing, software
-// distributed under the License is distributed on an "AS IS" BASIS,
-// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-// See the License for the specific language governing permissions and
-// limitations under the License.
+// SPDX-License-Identifier: Apache-2.0
 
 import { CypressFields, getElementByField } from '../../utils/Cypress';
 
diff --git a/src/frontend/cypress/e2e/Home.cy.ts b/src/frontend/cypress/e2e/Home.cy.ts
index 5d234a2..1e5526d 100644
--- a/src/frontend/cypress/e2e/Home.cy.ts
+++ b/src/frontend/cypress/e2e/Home.cy.ts
@@ -1,16 +1,5 @@
 // Copyright The OpenTelemetry Authors
-//
-// Licensed under the Apache License, Version 2.0 (the "License");
-// you may not use this file except in compliance with the License.
-// You may obtain a copy of the License at
-//
-//     http://www.apache.org/licenses/LICENSE-2.0
-//
-// Unless required by applicable law or agreed to in writing, software
-// distributed under the License is distributed on an "AS IS" BASIS,
-// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-// See the License for the specific language governing permissions and
-// limitations under the License.
+// SPDX-License-Identifier: Apache-2.0
 
 import getSymbolFromCurrency from 'currency-symbol-map';
 import SessionGateway from '../../gateways/Session.gateway';
diff --git a/src/frontend/cypress/e2e/ProductDetail.cy.ts b/src/frontend/cypress/e2e/ProductDetail.cy.ts
index 0ddf972..f165d3d 100644
--- a/src/frontend/cypress/e2e/ProductDetail.cy.ts
+++ b/src/frontend/cypress/e2e/ProductDetail.cy.ts
@@ -1,16 +1,5 @@
 // Copyright The OpenTelemetry Authors
-//
-// Licensed under the Apache License, Version 2.0 (the "License");
-// you may not use this file except in compliance with the License.
-// You may obtain a copy of the License at
-//
-//     http://www.apache.org/licenses/LICENSE-2.0
-//
-// Unless required by applicable law or agreed to in writing, software
-// distributed under the License is distributed on an "AS IS" BASIS,
-// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-// See the License for the specific language governing permissions and
-// limitations under the License.
+// SPDX-License-Identifier: Apache-2.0
 
 import { CypressFields, getElementByField } from '../../utils/Cypress';
 
diff --git a/src/frontend/gateways/Api.gateway.ts b/src/frontend/gateways/Api.gateway.ts
index e3e46d0..827c9f3 100644
--- a/src/frontend/gateways/Api.gateway.ts
+++ b/src/frontend/gateways/Api.gateway.ts
@@ -1,16 +1,5 @@
 // Copyright The OpenTelemetry Authors
-//
-// Licensed under the Apache License, Version 2.0 (the "License");
-// you may not use this file except in compliance with the License.
-// You may obtain a copy of the License at
-//
-//     http://www.apache.org/licenses/LICENSE-2.0
-//
-// Unless required by applicable law or agreed to in writing, software
-// distributed under the License is distributed on an "AS IS" BASIS,
-// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-// See the License for the specific language governing permissions and
-// limitations under the License.
+// SPDX-License-Identifier: Apache-2.0
 
 import { Ad, Address, Cart, CartItem, Money, PlaceOrderRequest, Product } from '../protos/demo';
 import { IProductCart, IProductCartItem, IProductCheckout } from '../types/Cart';
diff --git a/src/frontend/gateways/Session.gateway.ts b/src/frontend/gateways/Session.gateway.ts
index 0eb2a86..d5791b5 100644
--- a/src/frontend/gateways/Session.gateway.ts
+++ b/src/frontend/gateways/Session.gateway.ts
@@ -1,16 +1,5 @@
 // Copyright The OpenTelemetry Authors
-//
-// Licensed under the Apache License, Version 2.0 (the "License");
-// you may not use this file except in compliance with the License.
-// You may obtain a copy of the License at
-//
-//     http://www.apache.org/licenses/LICENSE-2.0
-//
-// Unless required by applicable law or agreed to in writing, software
-// distributed under the License is distributed on an "AS IS" BASIS,
-// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-// See the License for the specific language governing permissions and
-// limitations under the License.
+// SPDX-License-Identifier: Apache-2.0
 
 import { v4 } from 'uuid';
 
diff --git a/src/frontend/gateways/rpc/Ad.gateway.ts b/src/frontend/gateways/rpc/Ad.gateway.ts
index 7f94709..517a291 100644
--- a/src/frontend/gateways/rpc/Ad.gateway.ts
+++ b/src/frontend/gateways/rpc/Ad.gateway.ts
@@ -1,16 +1,5 @@
 // Copyright The OpenTelemetry Authors
-//
-// Licensed under the Apache License, Version 2.0 (the "License");
-// you may not use this file except in compliance with the License.
-// You may obtain a copy of the License at
-//
-//     http://www.apache.org/licenses/LICENSE-2.0
-//
-// Unless required by applicable law or agreed to in writing, software
-// distributed under the License is distributed on an "AS IS" BASIS,
-// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-// See the License for the specific language governing permissions and
-// limitations under the License.
+// SPDX-License-Identifier: Apache-2.0
 
 import { ChannelCredentials } from '@grpc/grpc-js';
 import { AdResponse, AdServiceClient } from '../../protos/demo';
diff --git a/src/frontend/gateways/rpc/Cart.gateway.ts b/src/frontend/gateways/rpc/Cart.gateway.ts
index cd3c882..ba025e6 100644
--- a/src/frontend/gateways/rpc/Cart.gateway.ts
+++ b/src/frontend/gateways/rpc/Cart.gateway.ts
@@ -1,16 +1,5 @@
 // Copyright The OpenTelemetry Authors
-//
-// Licensed under the Apache License, Version 2.0 (the "License");
-// you may not use this file except in compliance with the License.
-// You may obtain a copy of the License at
-//
-//     http://www.apache.org/licenses/LICENSE-2.0
-//
-// Unless required by applicable law or agreed to in writing, software
-// distributed under the License is distributed on an "AS IS" BASIS,
-// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-// See the License for the specific language governing permissions and
-// limitations under the License.
+// SPDX-License-Identifier: Apache-2.0
 
 import { ChannelCredentials } from '@grpc/grpc-js';
 import { Cart, CartItem, CartServiceClient, Empty } from '../../protos/demo';
diff --git a/src/frontend/gateways/rpc/Checkout.gateway.ts b/src/frontend/gateways/rpc/Checkout.gateway.ts
index 731b577..11250a2 100644
--- a/src/frontend/gateways/rpc/Checkout.gateway.ts
+++ b/src/frontend/gateways/rpc/Checkout.gateway.ts
@@ -1,16 +1,5 @@
 // Copyright The OpenTelemetry Authors
-//
-// Licensed under the Apache License, Version 2.0 (the "License");
-// you may not use this file except in compliance with the License.
-// You may obtain a copy of the License at
-//
-//     http://www.apache.org/licenses/LICENSE-2.0
-//
-// Unless required by applicable law or agreed to in writing, software
-// distributed under the License is distributed on an "AS IS" BASIS,
-// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-// See the License for the specific language governing permissions and
-// limitations under the License.
+// SPDX-License-Identifier: Apache-2.0
 
 import { ChannelCredentials } from '@grpc/grpc-js';
 import { CheckoutServiceClient, PlaceOrderRequest, PlaceOrderResponse } from '../../protos/demo';
diff --git a/src/frontend/gateways/rpc/Currency.gateway.ts b/src/frontend/gateways/rpc/Currency.gateway.ts
index 3e03bbb..e41d67c 100644
--- a/src/frontend/gateways/rpc/Currency.gateway.ts
+++ b/src/frontend/gateways/rpc/Currency.gateway.ts
@@ -1,16 +1,5 @@
 // Copyright The OpenTelemetry Authors
-//
-// Licensed under the Apache License, Version 2.0 (the "License");
-// you may not use this file except in compliance with the License.
-// You may obtain a copy of the License at
-//
-//     http://www.apache.org/licenses/LICENSE-2.0
-//
-// Unless required by applicable law or agreed to in writing, software
-// distributed under the License is distributed on an "AS IS" BASIS,
-// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-// See the License for the specific language governing permissions and
-// limitations under the License.
+// SPDX-License-Identifier: Apache-2.0
 
 import { ChannelCredentials } from '@grpc/grpc-js';
 import { GetSupportedCurrenciesResponse, CurrencyServiceClient, Money } from '../../protos/demo';
diff --git a/src/frontend/gateways/rpc/ProductCatalog.gateway.ts b/src/frontend/gateways/rpc/ProductCatalog.gateway.ts
index 0c74a29..8b0783e 100644
--- a/src/frontend/gateways/rpc/ProductCatalog.gateway.ts
+++ b/src/frontend/gateways/rpc/ProductCatalog.gateway.ts
@@ -1,16 +1,5 @@
 // Copyright The OpenTelemetry Authors
-//
-// Licensed under the Apache License, Version 2.0 (the "License");
-// you may not use this file except in compliance with the License.
-// You may obtain a copy of the License at
-//
-//     http://www.apache.org/licenses/LICENSE-2.0
-//
-// Unless required by applicable law or agreed to in writing, software
-// distributed under the License is distributed on an "AS IS" BASIS,
-// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-// See the License for the specific language governing permissions and
-// limitations under the License.
+// SPDX-License-Identifier: Apache-2.0
 
 import { ChannelCredentials } from '@grpc/grpc-js';
 import { ListProductsResponse, Product, ProductCatalogServiceClient } from '../../protos/demo';
diff --git a/src/frontend/gateways/rpc/Recommendations.gateway.ts b/src/frontend/gateways/rpc/Recommendations.gateway.ts
index 519721e..62fcd6d 100644
--- a/src/frontend/gateways/rpc/Recommendations.gateway.ts
+++ b/src/frontend/gateways/rpc/Recommendations.gateway.ts
@@ -1,16 +1,5 @@
 // Copyright The OpenTelemetry Authors
-//
-// Licensed under the Apache License, Version 2.0 (the "License");
-// you may not use this file except in compliance with the License.
-// You may obtain a copy of the License at
-//
-//     http://www.apache.org/licenses/LICENSE-2.0
-//
-// Unless required by applicable law or agreed to in writing, software
-// distributed under the License is distributed on an "AS IS" BASIS,
-// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-// See the License for the specific language governing permissions and
-// limitations under the License.
+// SPDX-License-Identifier: Apache-2.0
 
 import { ChannelCredentials } from '@grpc/grpc-js';
 import { ListRecommendationsResponse, RecommendationServiceClient } from '../../protos/demo';
diff --git a/src/frontend/gateways/rpc/Shipping.gateway.ts b/src/frontend/gateways/rpc/Shipping.gateway.ts
index 5a7f3f8..922eab2 100644
--- a/src/frontend/gateways/rpc/Shipping.gateway.ts
+++ b/src/frontend/gateways/rpc/Shipping.gateway.ts
@@ -1,16 +1,5 @@
 // Copyright The OpenTelemetry Authors
-//
-// Licensed under the Apache License, Version 2.0 (the "License");
-// you may not use this file except in compliance with the License.
-// You may obtain a copy of the License at
-//
-//     http://www.apache.org/licenses/LICENSE-2.0
-//
-// Unless required by applicable law or agreed to in writing, software
-// distributed under the License is distributed on an "AS IS" BASIS,
-// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-// See the License for the specific language governing permissions and
-// limitations under the License.
+// SPDX-License-Identifier: Apache-2.0
 
 import { ChannelCredentials } from '@grpc/grpc-js';
 import { Address, CartItem, GetQuoteResponse, ShippingServiceClient } from '../../protos/demo';
diff --git a/src/frontend/next.config.js b/src/frontend/next.config.js
index bf053f4..06cb8be 100755
--- a/src/frontend/next.config.js
+++ b/src/frontend/next.config.js
@@ -1,16 +1,5 @@
 // Copyright The OpenTelemetry Authors
-//
-// Licensed under the Apache License, Version 2.0 (the "License");
-// you may not use this file except in compliance with the License.
-// You may obtain a copy of the License at
-//
-//     http://www.apache.org/licenses/LICENSE-2.0
-//
-// Unless required by applicable law or agreed to in writing, software
-// distributed under the License is distributed on an "AS IS" BASIS,
-// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-// See the License for the specific language governing permissions and
-// limitations under the License.
+// SPDX-License-Identifier: Apache-2.0
 
 /** @type {import('next').NextConfig} */
 
diff --git a/src/frontend/pages/_app.tsx b/src/frontend/pages/_app.tsx
index f5ac0c1..f7f416c 100755
--- a/src/frontend/pages/_app.tsx
+++ b/src/frontend/pages/_app.tsx
@@ -1,16 +1,5 @@
 // Copyright The OpenTelemetry Authors
-//
-// Licensed under the Apache License, Version 2.0 (the "License");
-// you may not use this file except in compliance with the License.
-// You may obtain a copy of the License at
-//
-//     http://www.apache.org/licenses/LICENSE-2.0
-//
-// Unless required by applicable law or agreed to in writing, software
-// distributed under the License is distributed on an "AS IS" BASIS,
-// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-// See the License for the specific language governing permissions and
-// limitations under the License.
+// SPDX-License-Identifier: Apache-2.0
 
 import '../styles/globals.css';
 import { QueryClient, QueryClientProvider } from 'react-query';
diff --git a/src/frontend/pages/_document.tsx b/src/frontend/pages/_document.tsx
index e79ae49..80e4d49 100644
--- a/src/frontend/pages/_document.tsx
+++ b/src/frontend/pages/_document.tsx
@@ -1,16 +1,5 @@
 // Copyright The OpenTelemetry Authors
-//
-// Licensed under the Apache License, Version 2.0 (the "License");
-// you may not use this file except in compliance with the License.
-// You may obtain a copy of the License at
-//
-//     http://www.apache.org/licenses/LICENSE-2.0
-//
-// Unless required by applicable law or agreed to in writing, software
-// distributed under the License is distributed on an "AS IS" BASIS,
-// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-// See the License for the specific language governing permissions and
-// limitations under the License.
+// SPDX-License-Identifier: Apache-2.0
 
 import Document, { DocumentContext, Html, Head, Main, NextScript } from 'next/document';
 import { ServerStyleSheet } from 'styled-components';
diff --git a/src/frontend/pages/api/cart.ts b/src/frontend/pages/api/cart.ts
index b81a9e7..3f5b1b7 100755
--- a/src/frontend/pages/api/cart.ts
+++ b/src/frontend/pages/api/cart.ts
@@ -1,16 +1,5 @@
 // Copyright The OpenTelemetry Authors
-//
-// Licensed under the Apache License, Version 2.0 (the "License");
-// you may not use this file except in compliance with the License.
-// You may obtain a copy of the License at
-//
-//     http://www.apache.org/licenses/LICENSE-2.0
-//
-// Unless required by applicable law or agreed to in writing, software
-// distributed under the License is distributed on an "AS IS" BASIS,
-// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-// See the License for the specific language governing permissions and
-// limitations under the License.
+// SPDX-License-Identifier: Apache-2.0
 
 import type { NextApiHandler } from 'next';
 import CartGateway from '../../gateways/rpc/Cart.gateway';
diff --git a/src/frontend/pages/api/checkout.ts b/src/frontend/pages/api/checkout.ts
index 21b352e..6007ba2 100644
--- a/src/frontend/pages/api/checkout.ts
+++ b/src/frontend/pages/api/checkout.ts
@@ -1,16 +1,5 @@
 // Copyright The OpenTelemetry Authors
-//
-// Licensed under the Apache License, Version 2.0 (the "License");
-// you may not use this file except in compliance with the License.
-// You may obtain a copy of the License at
-//
-//     http://www.apache.org/licenses/LICENSE-2.0
-//
-// Unless required by applicable law or agreed to in writing, software
-// distributed under the License is distributed on an "AS IS" BASIS,
-// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-// See the License for the specific language governing permissions and
-// limitations under the License.
+// SPDX-License-Identifier: Apache-2.0
 
 import type { NextApiRequest, NextApiResponse } from 'next';
 import InstrumentationMiddleware from '../../utils/telemetry/InstrumentationMiddleware';
diff --git a/src/frontend/pages/api/currency.ts b/src/frontend/pages/api/currency.ts
index eda8b8e..fd69909 100644
--- a/src/frontend/pages/api/currency.ts
+++ b/src/frontend/pages/api/currency.ts
@@ -1,16 +1,5 @@
 // Copyright The OpenTelemetry Authors
-//
-// Licensed under the Apache License, Version 2.0 (the "License");
-// you may not use this file except in compliance with the License.
-// You may obtain a copy of the License at
-//
-//     http://www.apache.org/licenses/LICENSE-2.0
-//
-// Unless required by applicable law or agreed to in writing, software
-// distributed under the License is distributed on an "AS IS" BASIS,
-// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-// See the License for the specific language governing permissions and
-// limitations under the License.
+// SPDX-License-Identifier: Apache-2.0
 
 import type { NextApiRequest, NextApiResponse } from 'next';
 import InstrumentationMiddleware from '../../utils/telemetry/InstrumentationMiddleware';
diff --git a/src/frontend/pages/api/data.ts b/src/frontend/pages/api/data.ts
index af777f4..7e6ac8f 100644
--- a/src/frontend/pages/api/data.ts
+++ b/src/frontend/pages/api/data.ts
@@ -1,16 +1,5 @@
 // Copyright The OpenTelemetry Authors
-//
-// Licensed under the Apache License, Version 2.0 (the "License");
-// you may not use this file except in compliance with the License.
-// You may obtain a copy of the License at
-//
-//     http://www.apache.org/licenses/LICENSE-2.0
-//
-// Unless required by applicable law or agreed to in writing, software
-// distributed under the License is distributed on an "AS IS" BASIS,
-// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-// See the License for the specific language governing permissions and
-// limitations under the License.
+// SPDX-License-Identifier: Apache-2.0
 
 import type { NextApiRequest, NextApiResponse } from 'next';
 import InstrumentationMiddleware from '../../utils/telemetry/InstrumentationMiddleware';
diff --git a/src/frontend/pages/api/products/[productId]/index.ts b/src/frontend/pages/api/products/[productId]/index.ts
index 8e1ffdd..eb62465 100644
--- a/src/frontend/pages/api/products/[productId]/index.ts
+++ b/src/frontend/pages/api/products/[productId]/index.ts
@@ -1,16 +1,5 @@
 // Copyright The OpenTelemetry Authors
-//
-// Licensed under the Apache License, Version 2.0 (the "License");
-// you may not use this file except in compliance with the License.
-// You may obtain a copy of the License at
-//
-//     http://www.apache.org/licenses/LICENSE-2.0
-//
-// Unless required by applicable law or agreed to in writing, software
-// distributed under the License is distributed on an "AS IS" BASIS,
-// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-// See the License for the specific language governing permissions and
-// limitations under the License.
+// SPDX-License-Identifier: Apache-2.0
 
 import type { NextApiRequest, NextApiResponse } from 'next';
 import InstrumentationMiddleware from '../../../../utils/telemetry/InstrumentationMiddleware';
diff --git a/src/frontend/pages/api/products/index.ts b/src/frontend/pages/api/products/index.ts
index 3628247..74b8937 100644
--- a/src/frontend/pages/api/products/index.ts
+++ b/src/frontend/pages/api/products/index.ts
@@ -1,16 +1,5 @@
 // Copyright The OpenTelemetry Authors
-//
-// Licensed under the Apache License, Version 2.0 (the "License");
-// you may not use this file except in compliance with the License.
-// You may obtain a copy of the License at
-//
-//     http://www.apache.org/licenses/LICENSE-2.0
-//
-// Unless required by applicable law or agreed to in writing, software
-// distributed under the License is distributed on an "AS IS" BASIS,
-// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-// See the License for the specific language governing permissions and
-// limitations under the License.
+// SPDX-License-Identifier: Apache-2.0
 
 import type { NextApiRequest, NextApiResponse } from 'next';
 import InstrumentationMiddleware from '../../../utils/telemetry/InstrumentationMiddleware';
diff --git a/src/frontend/pages/api/recommendations.ts b/src/frontend/pages/api/recommendations.ts
index 1019e29..dd975a9 100644
--- a/src/frontend/pages/api/recommendations.ts
+++ b/src/frontend/pages/api/recommendations.ts
@@ -1,16 +1,5 @@
 // Copyright The OpenTelemetry Authors
-//
-// Licensed under the Apache License, Version 2.0 (the "License");
-// you may not use this file except in compliance with the License.
-// You may obtain a copy of the License at
-//
-//     http://www.apache.org/licenses/LICENSE-2.0
-//
-// Unless required by applicable law or agreed to in writing, software
-// distributed under the License is distributed on an "AS IS" BASIS,
-// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-// See the License for the specific language governing permissions and
-// limitations under the License.
+// SPDX-License-Identifier: Apache-2.0
 
 import type { NextApiRequest, NextApiResponse } from 'next';
 import InstrumentationMiddleware from '../../utils/telemetry/InstrumentationMiddleware';
diff --git a/src/frontend/pages/api/shipping.ts b/src/frontend/pages/api/shipping.ts
index b9001d1..b1992de 100644
--- a/src/frontend/pages/api/shipping.ts
+++ b/src/frontend/pages/api/shipping.ts
@@ -1,16 +1,5 @@
 // Copyright The OpenTelemetry Authors
-//
-// Licensed under the Apache License, Version 2.0 (the "License");
-// you may not use this file except in compliance with the License.
-// You may obtain a copy of the License at
-//
-//     http://www.apache.org/licenses/LICENSE-2.0
-//
-// Unless required by applicable law or agreed to in writing, software
-// distributed under the License is distributed on an "AS IS" BASIS,
-// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-// See the License for the specific language governing permissions and
-// limitations under the License.
+// SPDX-License-Identifier: Apache-2.0
 
 import type { NextApiRequest, NextApiResponse } from 'next';
 import InstrumentationMiddleware from '../../utils/telemetry/InstrumentationMiddleware';
diff --git a/src/frontend/pages/cart/checkout/[orderId]/index.tsx b/src/frontend/pages/cart/checkout/[orderId]/index.tsx
index 9d533c0..31cdbfc 100644
--- a/src/frontend/pages/cart/checkout/[orderId]/index.tsx
+++ b/src/frontend/pages/cart/checkout/[orderId]/index.tsx
@@ -1,16 +1,5 @@
 // Copyright The OpenTelemetry Authors
-//
-// Licensed under the Apache License, Version 2.0 (the "License");
-// you may not use this file except in compliance with the License.
-// You may obtain a copy of the License at
-//
-//     http://www.apache.org/licenses/LICENSE-2.0
-//
-// Unless required by applicable law or agreed to in writing, software
-// distributed under the License is distributed on an "AS IS" BASIS,
-// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-// See the License for the specific language governing permissions and
-// limitations under the License.
+// SPDX-License-Identifier: Apache-2.0
 
 import { NextPage } from 'next';
 import Link from 'next/link';
diff --git a/src/frontend/pages/cart/index.tsx b/src/frontend/pages/cart/index.tsx
index a4ee713..7e0a3f7 100644
--- a/src/frontend/pages/cart/index.tsx
+++ b/src/frontend/pages/cart/index.tsx
@@ -1,16 +1,5 @@
 // Copyright The OpenTelemetry Authors
-//
-// Licensed under the Apache License, Version 2.0 (the "License");
-// you may not use this file except in compliance with the License.
-// You may obtain a copy of the License at
-//
-//     http://www.apache.org/licenses/LICENSE-2.0
-//
-// Unless required by applicable law or agreed to in writing, software
-// distributed under the License is distributed on an "AS IS" BASIS,
-// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-// See the License for the specific language governing permissions and
-// limitations under the License.
+// SPDX-License-Identifier: Apache-2.0
 
 import { NextPage } from 'next';
 import Footer from '../../components/Footer';
diff --git a/src/frontend/pages/index.tsx b/src/frontend/pages/index.tsx
index 6951a13..048a6f0 100755
--- a/src/frontend/pages/index.tsx
+++ b/src/frontend/pages/index.tsx
@@ -1,16 +1,5 @@
 // Copyright The OpenTelemetry Authors
-//
-// Licensed under the Apache License, Version 2.0 (the "License");
-// you may not use this file except in compliance with the License.
-// You may obtain a copy of the License at
-//
-//     http://www.apache.org/licenses/LICENSE-2.0
-//
-// Unless required by applicable law or agreed to in writing, software
-// distributed under the License is distributed on an "AS IS" BASIS,
-// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-// See the License for the specific language governing permissions and
-// limitations under the License.
+// SPDX-License-Identifier: Apache-2.0
 
 import { NextPage } from 'next';
 import Footer from '../components/Footer';
diff --git a/src/frontend/pages/product/[productId]/index.tsx b/src/frontend/pages/product/[productId]/index.tsx
index f2b5fa9..d356976 100644
--- a/src/frontend/pages/product/[productId]/index.tsx
+++ b/src/frontend/pages/product/[productId]/index.tsx
@@ -1,16 +1,5 @@
 // Copyright The OpenTelemetry Authors
-//
-// Licensed under the Apache License, Version 2.0 (the "License");
-// you may not use this file except in compliance with the License.
-// You may obtain a copy of the License at
-//
-//     http://www.apache.org/licenses/LICENSE-2.0
-//
-// Unless required by applicable law or agreed to in writing, software
-// distributed under the License is distributed on an "AS IS" BASIS,
-// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-// See the License for the specific language governing permissions and
-// limitations under the License.
+// SPDX-License-Identifier: Apache-2.0
 
 import { NextPage } from 'next';
 import Image from 'next/image';
diff --git a/src/frontend/providers/Ad.provider.tsx b/src/frontend/providers/Ad.provider.tsx
index e887aca..d3cc2cc 100644
--- a/src/frontend/providers/Ad.provider.tsx
+++ b/src/frontend/providers/Ad.provider.tsx
@@ -1,16 +1,5 @@
 // Copyright The OpenTelemetry Authors
-//
-// Licensed under the Apache License, Version 2.0 (the "License");
-// you may not use this file except in compliance with the License.
-// You may obtain a copy of the License at
-//
-//     http://www.apache.org/licenses/LICENSE-2.0
-//
-// Unless required by applicable law or agreed to in writing, software
-// distributed under the License is distributed on an "AS IS" BASIS,
-// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-// See the License for the specific language governing permissions and
-// limitations under the License.
+// SPDX-License-Identifier: Apache-2.0
 
 import { createContext, useContext, useMemo } from 'react';
 import { useQuery } from 'react-query';
diff --git a/src/frontend/providers/Cart.provider.tsx b/src/frontend/providers/Cart.provider.tsx
index e68350f..3d69fbc 100644
--- a/src/frontend/providers/Cart.provider.tsx
+++ b/src/frontend/providers/Cart.provider.tsx
@@ -1,16 +1,5 @@
 // Copyright The OpenTelemetry Authors
-//
-// Licensed under the Apache License, Version 2.0 (the "License");
-// you may not use this file except in compliance with the License.
-// You may obtain a copy of the License at
-//
-//     http://www.apache.org/licenses/LICENSE-2.0
-//
-// Unless required by applicable law or agreed to in writing, software
-// distributed under the License is distributed on an "AS IS" BASIS,
-// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-// See the License for the specific language governing permissions and
-// limitations under the License.
+// SPDX-License-Identifier: Apache-2.0
 
 import { createContext, useCallback, useContext, useMemo } from 'react';
 import { useMutation, useQuery, useQueryClient } from 'react-query';
diff --git a/src/frontend/providers/Currency.provider.tsx b/src/frontend/providers/Currency.provider.tsx
index 9f4d470..7163f82 100644
--- a/src/frontend/providers/Currency.provider.tsx
+++ b/src/frontend/providers/Currency.provider.tsx
@@ -1,16 +1,5 @@
 // Copyright The OpenTelemetry Authors
-//
-// Licensed under the Apache License, Version 2.0 (the "License");
-// you may not use this file except in compliance with the License.
-// You may obtain a copy of the License at
-//
-//     http://www.apache.org/licenses/LICENSE-2.0
-//
-// Unless required by applicable law or agreed to in writing, software
-// distributed under the License is distributed on an "AS IS" BASIS,
-// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-// See the License for the specific language governing permissions and
-// limitations under the License.
+// SPDX-License-Identifier: Apache-2.0
 
 import { createContext, useCallback, useContext, useMemo, useState, useEffect } from 'react';
 import { useQuery } from 'react-query';
diff --git a/src/frontend/services/ProductCatalog.service.ts b/src/frontend/services/ProductCatalog.service.ts
index 9a851d0..9854531 100644
--- a/src/frontend/services/ProductCatalog.service.ts
+++ b/src/frontend/services/ProductCatalog.service.ts
@@ -1,16 +1,5 @@
 // Copyright The OpenTelemetry Authors
-//
-// Licensed under the Apache License, Version 2.0 (the "License");
-// you may not use this file except in compliance with the License.
-// You may obtain a copy of the License at
-//
-//     http://www.apache.org/licenses/LICENSE-2.0
-//
-// Unless required by applicable law or agreed to in writing, software
-// distributed under the License is distributed on an "AS IS" BASIS,
-// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-// See the License for the specific language governing permissions and
-// limitations under the License.
+// SPDX-License-Identifier: Apache-2.0
 
 import ProductCatalogGateway from '../gateways/rpc/ProductCatalog.gateway';
 import CurrencyGateway from '../gateways/rpc/Currency.gateway';
diff --git a/src/frontend/styles/Cart.styled.ts b/src/frontend/styles/Cart.styled.ts
index d4ef895..e8348cf 100644
--- a/src/frontend/styles/Cart.styled.ts
+++ b/src/frontend/styles/Cart.styled.ts
@@ -1,16 +1,5 @@
 // Copyright The OpenTelemetry Authors
-//
-// Licensed under the Apache License, Version 2.0 (the "License");
-// you may not use this file except in compliance with the License.
-// You may obtain a copy of the License at
-//
-//     http://www.apache.org/licenses/LICENSE-2.0
-//
-// Unless required by applicable law or agreed to in writing, software
-// distributed under the License is distributed on an "AS IS" BASIS,
-// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-// See the License for the specific language governing permissions and
-// limitations under the License.
+// SPDX-License-Identifier: Apache-2.0
 
 import styled from 'styled-components';
 import Button from '../components/Button';
diff --git a/src/frontend/styles/Checkout.styled.ts b/src/frontend/styles/Checkout.styled.ts
index dcbfb5e..69e340f 100644
--- a/src/frontend/styles/Checkout.styled.ts
+++ b/src/frontend/styles/Checkout.styled.ts
@@ -1,16 +1,5 @@
 // Copyright The OpenTelemetry Authors
-//
-// Licensed under the Apache License, Version 2.0 (the "License");
-// you may not use this file except in compliance with the License.
-// You may obtain a copy of the License at
-//
-//     http://www.apache.org/licenses/LICENSE-2.0
-//
-// Unless required by applicable law or agreed to in writing, software
-// distributed under the License is distributed on an "AS IS" BASIS,
-// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-// See the License for the specific language governing permissions and
-// limitations under the License.
+// SPDX-License-Identifier: Apache-2.0
 
 import styled from 'styled-components';
 
diff --git a/src/frontend/styles/Home.styled.ts b/src/frontend/styles/Home.styled.ts
index 4c90601..d1a0d14 100644
--- a/src/frontend/styles/Home.styled.ts
+++ b/src/frontend/styles/Home.styled.ts
@@ -1,16 +1,5 @@
 // Copyright The OpenTelemetry Authors
-//
-// Licensed under the Apache License, Version 2.0 (the "License");
-// you may not use this file except in compliance with the License.
-// You may obtain a copy of the License at
-//
-//     http://www.apache.org/licenses/LICENSE-2.0
-//
-// Unless required by applicable law or agreed to in writing, software
-// distributed under the License is distributed on an "AS IS" BASIS,
-// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-// See the License for the specific language governing permissions and
-// limitations under the License.
+// SPDX-License-Identifier: Apache-2.0
 
 import styled from 'styled-components';
 
diff --git a/src/frontend/styles/ProductDetail.styled.ts b/src/frontend/styles/ProductDetail.styled.ts
index e543832..a2dda38 100644
--- a/src/frontend/styles/ProductDetail.styled.ts
+++ b/src/frontend/styles/ProductDetail.styled.ts
@@ -1,16 +1,5 @@
 // Copyright The OpenTelemetry Authors
-//
-// Licensed under the Apache License, Version 2.0 (the "License");
-// you may not use this file except in compliance with the License.
-// You may obtain a copy of the License at
-//
-//     http://www.apache.org/licenses/LICENSE-2.0
-//
-// Unless required by applicable law or agreed to in writing, software
-// distributed under the License is distributed on an "AS IS" BASIS,
-// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-// See the License for the specific language governing permissions and
-// limitations under the License.
+// SPDX-License-Identifier: Apache-2.0
 
 import styled from 'styled-components';
 import Button from '../components/Button';
diff --git a/src/frontend/styles/Theme.ts b/src/frontend/styles/Theme.ts
index 0872751..f2478cc 100644
--- a/src/frontend/styles/Theme.ts
+++ b/src/frontend/styles/Theme.ts
@@ -1,16 +1,5 @@
 // Copyright The OpenTelemetry Authors
-//
-// Licensed under the Apache License, Version 2.0 (the "License");
-// you may not use this file except in compliance with the License.
-// You may obtain a copy of the License at
-//
-//     http://www.apache.org/licenses/LICENSE-2.0
-//
-// Unless required by applicable law or agreed to in writing, software
-// distributed under the License is distributed on an "AS IS" BASIS,
-// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-// See the License for the specific language governing permissions and
-// limitations under the License.
+// SPDX-License-Identifier: Apache-2.0
 
 import { DefaultTheme } from 'styled-components';
 
diff --git a/src/frontend/styles/style.d.ts b/src/frontend/styles/style.d.ts
index 5eb060d..0ec905d 100644
--- a/src/frontend/styles/style.d.ts
+++ b/src/frontend/styles/style.d.ts
@@ -1,16 +1,5 @@
 // Copyright The OpenTelemetry Authors
-//
-// Licensed under the Apache License, Version 2.0 (the "License");
-// you may not use this file except in compliance with the License.
-// You may obtain a copy of the License at
-//
-//     http://www.apache.org/licenses/LICENSE-2.0
-//
-// Unless required by applicable law or agreed to in writing, software
-// distributed under the License is distributed on an "AS IS" BASIS,
-// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-// See the License for the specific language governing permissions and
-// limitations under the License.
+// SPDX-License-Identifier: Apache-2.0
 
 import 'styled-components';
 
diff --git a/src/frontend/types/Cart.ts b/src/frontend/types/Cart.ts
index 8eca0ae..93e7f54 100644
--- a/src/frontend/types/Cart.ts
+++ b/src/frontend/types/Cart.ts
@@ -1,16 +1,5 @@
 // Copyright The OpenTelemetry Authors
-//
-// Licensed under the Apache License, Version 2.0 (the "License");
-// you may not use this file except in compliance with the License.
-// You may obtain a copy of the License at
-//
-//     http://www.apache.org/licenses/LICENSE-2.0
-//
-// Unless required by applicable law or agreed to in writing, software
-// distributed under the License is distributed on an "AS IS" BASIS,
-// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-// See the License for the specific language governing permissions and
-// limitations under the License.
+// SPDX-License-Identifier: Apache-2.0
 
 import {Address, Cart, OrderItem, OrderResult, Product} from '../protos/demo';
 
diff --git a/src/frontend/utils/Cypress.ts b/src/frontend/utils/Cypress.ts
index 3feaf9f..d419213 100644
--- a/src/frontend/utils/Cypress.ts
+++ b/src/frontend/utils/Cypress.ts
@@ -1,16 +1,5 @@
 // Copyright The OpenTelemetry Authors
-//
-// Licensed under the Apache License, Version 2.0 (the "License");
-// you may not use this file except in compliance with the License.
-// You may obtain a copy of the License at
-//
-//     http://www.apache.org/licenses/LICENSE-2.0
-//
-// Unless required by applicable law or agreed to in writing, software
-// distributed under the License is distributed on an "AS IS" BASIS,
-// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-// See the License for the specific language governing permissions and
-// limitations under the License.
+// SPDX-License-Identifier: Apache-2.0
 
 export enum CypressFields {
   Ad = 'ad',
diff --git a/src/frontend/utils/Request.ts b/src/frontend/utils/Request.ts
index 15ded44..b0ff20e 100644
--- a/src/frontend/utils/Request.ts
+++ b/src/frontend/utils/Request.ts
@@ -1,16 +1,5 @@
 // Copyright The OpenTelemetry Authors
-//
-// Licensed under the Apache License, Version 2.0 (the "License");
-// you may not use this file except in compliance with the License.
-// You may obtain a copy of the License at
-//
-//     http://www.apache.org/licenses/LICENSE-2.0
-//
-// Unless required by applicable law or agreed to in writing, software
-// distributed under the License is distributed on an "AS IS" BASIS,
-// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-// See the License for the specific language governing permissions and
-// limitations under the License.
+// SPDX-License-Identifier: Apache-2.0
 
 interface IRequestParams {
   url: string;
diff --git a/src/frontend/utils/enums/AttributeNames.ts b/src/frontend/utils/enums/AttributeNames.ts
index d467a20..ceda8c1 100644
--- a/src/frontend/utils/enums/AttributeNames.ts
+++ b/src/frontend/utils/enums/AttributeNames.ts
@@ -1,16 +1,5 @@
 // Copyright The OpenTelemetry Authors
-//
-// Licensed under the Apache License, Version 2.0 (the "License");
-// you may not use this file except in compliance with the License.
-// You may obtain a copy of the License at
-//
-//     http://www.apache.org/licenses/LICENSE-2.0
-//
-// Unless required by applicable law or agreed to in writing, software
-// distributed under the License is distributed on an "AS IS" BASIS,
-// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-// See the License for the specific language governing permissions and
-// limitations under the License.
+// SPDX-License-Identifier: Apache-2.0
 
 export enum AttributeNames {
     SESSION_ID = 'app.session.id'
diff --git a/src/frontend/utils/telemetry/FrontendTracer.ts b/src/frontend/utils/telemetry/FrontendTracer.ts
index 797a67c..ebce0ca 100644
--- a/src/frontend/utils/telemetry/FrontendTracer.ts
+++ b/src/frontend/utils/telemetry/FrontendTracer.ts
@@ -1,16 +1,5 @@
 // Copyright The OpenTelemetry Authors
-//
-// Licensed under the Apache License, Version 2.0 (the "License");
-// you may not use this file except in compliance with the License.
-// You may obtain a copy of the License at
-//
-//     http://www.apache.org/licenses/LICENSE-2.0
-//
-// Unless required by applicable law or agreed to in writing, software
-// distributed under the License is distributed on an "AS IS" BASIS,
-// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-// See the License for the specific language governing permissions and
-// limitations under the License.
+// SPDX-License-Identifier: Apache-2.0
 
 import { CompositePropagator, W3CBaggagePropagator, W3CTraceContextPropagator } from '@opentelemetry/core';
 import { WebTracerProvider } from '@opentelemetry/sdk-trace-web';
diff --git a/src/frontend/utils/telemetry/Instrumentation.js b/src/frontend/utils/telemetry/Instrumentation.js
index 53f8bab..819eb32 100644
--- a/src/frontend/utils/telemetry/Instrumentation.js
+++ b/src/frontend/utils/telemetry/Instrumentation.js
@@ -1,16 +1,5 @@
 // Copyright The OpenTelemetry Authors
-//
-// Licensed under the Apache License, Version 2.0 (the "License");
-// you may not use this file except in compliance with the License.
-// You may obtain a copy of the License at
-//
-//     http://www.apache.org/licenses/LICENSE-2.0
-//
-// Unless required by applicable law or agreed to in writing, software
-// distributed under the License is distributed on an "AS IS" BASIS,
-// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-// See the License for the specific language governing permissions and
-// limitations under the License.
+// SPDX-License-Identifier: Apache-2.0
 
 const opentelemetry = require('@opentelemetry/sdk-node');
 const { getNodeAutoInstrumentations } = require('@opentelemetry/auto-instrumentations-node');
diff --git a/src/frontend/utils/telemetry/InstrumentationMiddleware.ts b/src/frontend/utils/telemetry/InstrumentationMiddleware.ts
index 52adf9e..1c1fde1 100644
--- a/src/frontend/utils/telemetry/InstrumentationMiddleware.ts
+++ b/src/frontend/utils/telemetry/InstrumentationMiddleware.ts
@@ -1,16 +1,5 @@
 // Copyright The OpenTelemetry Authors
-//
-// Licensed under the Apache License, Version 2.0 (the "License");
-// you may not use this file except in compliance with the License.
-// You may obtain a copy of the License at
-//
-//     http://www.apache.org/licenses/LICENSE-2.0
-//
-// Unless required by applicable law or agreed to in writing, software
-// distributed under the License is distributed on an "AS IS" BASIS,
-// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-// See the License for the specific language governing permissions and
-// limitations under the License.
+// SPDX-License-Identifier: Apache-2.0
 
 import { NextApiHandler } from 'next';
 import { context, Exception, propagation, Span, SpanKind, SpanStatusCode, trace } from '@opentelemetry/api';
diff --git a/src/frontend/utils/telemetry/SessionIdProcessor.ts b/src/frontend/utils/telemetry/SessionIdProcessor.ts
index a5a75d4..cd89c0b 100644
--- a/src/frontend/utils/telemetry/SessionIdProcessor.ts
+++ b/src/frontend/utils/telemetry/SessionIdProcessor.ts
@@ -1,16 +1,5 @@
 // Copyright The OpenTelemetry Authors
-//
-// Licensed under the Apache License, Version 2.0 (the "License");
-// you may not use this file except in compliance with the License.
-// You may obtain a copy of the License at
-//
-//     http://www.apache.org/licenses/LICENSE-2.0
-//
-// Unless required by applicable law or agreed to in writing, software
-// distributed under the License is distributed on an "AS IS" BASIS,
-// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-// See the License for the specific language governing permissions and
-// limitations under the License.
+// SPDX-License-Identifier: Apache-2.0
 
 import { Context } from "@opentelemetry/api";
 import { ReadableSpan, Span, SpanProcessor } from "@opentelemetry/sdk-trace-web";
diff --git a/src/frontendproxy/Dockerfile b/src/frontendproxy/Dockerfile
index aff8582..f287310 100644
--- a/src/frontendproxy/Dockerfile
+++ b/src/frontendproxy/Dockerfile
@@ -1,16 +1,6 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
+
 
 FROM envoyproxy/envoy-dev:8c202194ac6a2cb781eb6ce27d924b379b1e787f
 RUN apt-get update && apt-get install -y gettext-base && apt-get clean && rm -rf /var/lib/apt/lists/*
diff --git a/src/frontendproxy/envoy.tmpl.yaml b/src/frontendproxy/envoy.tmpl.yaml
index 9284113..2eb11a5 100644
--- a/src/frontendproxy/envoy.tmpl.yaml
+++ b/src/frontendproxy/envoy.tmpl.yaml
@@ -1,16 +1,6 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
+
 
 static_resources:
   listeners:
diff --git a/src/grafana/grafana.ini b/src/grafana/grafana.ini
index 80da14a..2443041 100644
--- a/src/grafana/grafana.ini
+++ b/src/grafana/grafana.ini
@@ -1,16 +1,4 @@
-# Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+
 
 ##################### Grafana Configuration Example #####################
 #
diff --git a/src/grafana/provisioning/dashboards/general.yaml b/src/grafana/provisioning/dashboards/general.yaml
index 2574526..faabdfa 100644
--- a/src/grafana/provisioning/dashboards/general.yaml
+++ b/src/grafana/provisioning/dashboards/general.yaml
@@ -1,16 +1,6 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
+
 
 apiVersion: 1
 providers:
diff --git a/src/grafana/provisioning/datasources/default.yaml b/src/grafana/provisioning/datasources/default.yaml
index 5791889..7ee1aee 100644
--- a/src/grafana/provisioning/datasources/default.yaml
+++ b/src/grafana/provisioning/datasources/default.yaml
@@ -1,16 +1,6 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
+
 
 apiVersion: 1
 
diff --git a/src/grafana/provisioning/datasources/jaeger.yaml b/src/grafana/provisioning/datasources/jaeger.yaml
index 4dfbfe0..5ded2f4 100644
--- a/src/grafana/provisioning/datasources/jaeger.yaml
+++ b/src/grafana/provisioning/datasources/jaeger.yaml
@@ -1,16 +1,6 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
+
 
 apiVersion: 1
 
diff --git a/src/kafka/Dockerfile b/src/kafka/Dockerfile
index d8b3e7d..369608f 100644
--- a/src/kafka/Dockerfile
+++ b/src/kafka/Dockerfile
@@ -1,16 +1,6 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
+
 
 FROM confluentinc/cp-kafka:latest-ubi8
 
diff --git a/src/kafka/update_run.sh b/src/kafka/update_run.sh
index 432d6ae..bd985ba 100755
--- a/src/kafka/update_run.sh
+++ b/src/kafka/update_run.sh
@@ -1,17 +1,7 @@
-#!/bin/sh
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
+#!/bin/sh
+
 
 # https://github.com/confluentinc/learn-kafka-kraft/blob/4c75598779c4a993464f6979dc0d702552df8f3b/kraft/scripts/update_run.sh
 
diff --git a/src/loadgenerator/Dockerfile b/src/loadgenerator/Dockerfile
index 841afa6..bf9026d 100644
--- a/src/loadgenerator/Dockerfile
+++ b/src/loadgenerator/Dockerfile
@@ -1,16 +1,6 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#      http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
+
 
 FROM python:3.11-slim-buster as base
 
diff --git a/src/loadgenerator/locustfile.py b/src/loadgenerator/locustfile.py
index ca51511..ee983d5 100644
--- a/src/loadgenerator/locustfile.py
+++ b/src/loadgenerator/locustfile.py
@@ -1,18 +1,12 @@
 #!/usr/bin/python
-#
 # Copyright The OpenTelemetry Authors
+# SPDX-License-Identifier: Apache-2.0
+#!/usr/bin/python
 #
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#      http://www.apache.org/licenses/LICENSE-2.0
+
+#!/usr/bin/python
 #
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+
 
 import json
 import random
diff --git a/src/otelcollector/otelcol-config-extras.yml b/src/otelcollector/otelcol-config-extras.yml
index 9b76acd..f557025 100644
--- a/src/otelcollector/otelcol-config-extras.yml
+++ b/src/otelcollector/otelcol-config-extras.yml
@@ -1,2 +1,4 @@
+# Copyright The OpenTelemetry Authors
+# SPDX-License-Identifier: Apache-2.0
 # extra settings to be merged into OpenTelemetry Collector configuration
 # do not delete this file
diff --git a/src/otelcollector/otelcol-config.yml b/src/otelcollector/otelcol-config.yml
index 4340933..daac4ce 100644
--- a/src/otelcollector/otelcol-config.yml
+++ b/src/otelcollector/otelcol-config.yml
@@ -1,16 +1,6 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
+
 
 receivers:
   otlp:
diff --git a/src/paymentservice/Dockerfile b/src/paymentservice/Dockerfile
index 4f690d4..d77d1f2 100644
--- a/src/paymentservice/Dockerfile
+++ b/src/paymentservice/Dockerfile
@@ -1,16 +1,6 @@
-# Copyright 2020 Google LLC
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#      http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# Copyright The OpenTelemetry Authors
+# SPDX-License-Identifier: Apache-2.0
+
 
 FROM node:16-alpine AS build
 
diff --git a/src/paymentservice/charge.js b/src/paymentservice/charge.js
index 1072863..77e3c09 100644
--- a/src/paymentservice/charge.js
+++ b/src/paymentservice/charge.js
@@ -1,17 +1,5 @@
-// Copyright 2018 Google LLC
-//
-// Licensed under the Apache License, Version 2.0 (the "License");
-// you may not use this file except in compliance with the License.
-// You may obtain a copy of the License at
-//
-//      http://www.apache.org/licenses/LICENSE-2.0
-//
-// Unless required by applicable law or agreed to in writing, software
-// distributed under the License is distributed on an "AS IS" BASIS,
-// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-// See the License for the specific language governing permissions and
-// limitations under the License.
-
+// Copyright The OpenTelemetry Authors
+// SPDX-License-Identifier: Apache-2.0
 const {context, propagation, trace, metrics} = require('@opentelemetry/api');
 const cardValidator = require('simple-card-validator');
 const { v4: uuidv4 } = require('uuid');
diff --git a/src/paymentservice/index.js b/src/paymentservice/index.js
index bb5ed34..8f95e61 100644
--- a/src/paymentservice/index.js
+++ b/src/paymentservice/index.js
@@ -1,17 +1,5 @@
-// Copyright 2018 Google LLC
-//
-// Licensed under the Apache License, Version 2.0 (the "License");
-// you may not use this file except in compliance with the License.
-// You may obtain a copy of the License at
-//
-//      http://www.apache.org/licenses/LICENSE-2.0
-//
-// Unless required by applicable law or agreed to in writing, software
-// distributed under the License is distributed on an "AS IS" BASIS,
-// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-// See the License for the specific language governing permissions and
-// limitations under the License.
-
+// Copyright The OpenTelemetry Authors
+// SPDX-License-Identifier: Apache-2.0
 const grpc = require('@grpc/grpc-js')
 const protoLoader = require('@grpc/proto-loader')
 const health = require('grpc-js-health-check')
diff --git a/src/paymentservice/logger.js b/src/paymentservice/logger.js
index db7dd8d..ecc4a52 100644
--- a/src/paymentservice/logger.js
+++ b/src/paymentservice/logger.js
@@ -1,16 +1,5 @@
 // Copyright The OpenTelemetry Authors
-//
-// Licensed under the Apache License, Version 2.0 (the "License");
-// you may not use this file except in compliance with the License.
-// You may obtain a copy of the License at
-//
-//     http://www.apache.org/licenses/LICENSE-2.0
-//
-// Unless required by applicable law or agreed to in writing, software
-// distributed under the License is distributed on an "AS IS" BASIS,
-// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-// See the License for the specific language governing permissions and
-// limitations under the License.
+// SPDX-License-Identifier: Apache-2.0
 
 const pino = require('pino');
 
diff --git a/src/paymentservice/opentelemetry.js b/src/paymentservice/opentelemetry.js
index 31258de..2cc61bd 100644
--- a/src/paymentservice/opentelemetry.js
+++ b/src/paymentservice/opentelemetry.js
@@ -1,16 +1,5 @@
 // Copyright The OpenTelemetry Authors
-//
-// Licensed under the Apache License, Version 2.0 (the "License");
-// you may not use this file except in compliance with the License.
-// You may obtain a copy of the License at
-//
-//     http://www.apache.org/licenses/LICENSE-2.0
-//
-// Unless required by applicable law or agreed to in writing, software
-// distributed under the License is distributed on an "AS IS" BASIS,
-// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-// See the License for the specific language governing permissions and
-// limitations under the License.
+// SPDX-License-Identifier: Apache-2.0
 
 const opentelemetry = require("@opentelemetry/sdk-node")
 const { getNodeAutoInstrumentations } = require("@opentelemetry/auto-instrumentations-node")
diff --git a/src/productcatalogservice/Dockerfile b/src/productcatalogservice/Dockerfile
index bdb8a8d..380299d 100644
--- a/src/productcatalogservice/Dockerfile
+++ b/src/productcatalogservice/Dockerfile
@@ -1,16 +1,6 @@
-# Copyright 2020 Google LLC
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#      http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# Copyright The OpenTelemetry Authors
+# SPDX-License-Identifier: Apache-2.0
+
 
 FROM golang:1.19.4-alpine AS builder
 
diff --git a/src/productcatalogservice/main.go b/src/productcatalogservice/main.go
index 7909514..4f641af 100644
--- a/src/productcatalogservice/main.go
+++ b/src/productcatalogservice/main.go
@@ -1,22 +1,17 @@
-// Copyright 2018 Google LLC
-//
-// Licensed under the Apache License, Version 2.0 (the "License");
-// you may not use this file except in compliance with the License.
-// You may obtain a copy of the License at
-//
-//      http://www.apache.org/licenses/LICENSE-2.0
-//
-// Unless required by applicable law or agreed to in writing, software
-// distributed under the License is distributed on an "AS IS" BASIS,
-// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-// See the License for the specific language governing permissions and
-// limitations under the License.
-
+// Copyright The OpenTelemetry Authors
+// SPDX-License-Identifier: Apache-2.0
 package main
 
 import (
 	"context"
 	"fmt"
+	"io/ioutil"
+	"net"
+	"os"
+	"strings"
+	"sync"
+	"time"
+
 	pb "github.com/opentelemetry/opentelemetry-demo/src/productcatalogservice/genproto/oteldemo"
 	"github.com/sirupsen/logrus"
 	"go.opentelemetry.io/contrib/instrumentation/google.golang.org/grpc/otelgrpc"
@@ -24,12 +19,6 @@ import (
 	"go.opentelemetry.io/otel/metric/global"
 	sdkmetric "go.opentelemetry.io/otel/sdk/metric"
 	healthpb "google.golang.org/grpc/health/grpc_health_v1"
-	"io/ioutil"
-	"net"
-	"os"
-	"strings"
-	"sync"
-	"time"
 
 	"go.opentelemetry.io/otel"
 	"go.opentelemetry.io/otel/attribute"
diff --git a/src/prometheus/prometheus-config.yaml b/src/prometheus/prometheus-config.yaml
index 13cc7a4..4aeac2b 100644
--- a/src/prometheus/prometheus-config.yaml
+++ b/src/prometheus/prometheus-config.yaml
@@ -1,16 +1,6 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
+
 
 global:
   evaluation_interval: 30s
diff --git a/src/quoteservice/Dockerfile b/src/quoteservice/Dockerfile
index ad9ffa8..a1ed3a1 100644
--- a/src/quoteservice/Dockerfile
+++ b/src/quoteservice/Dockerfile
@@ -1,16 +1,6 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
+
 
 FROM composer:2.4 AS build
 
diff --git a/src/quoteservice/app/dependencies.php b/src/quoteservice/app/dependencies.php
index 68f03d7..9acf2ba 100644
--- a/src/quoteservice/app/dependencies.php
+++ b/src/quoteservice/app/dependencies.php
@@ -1,17 +1,8 @@
 <?php
 // Copyright The OpenTelemetry Authors
-//
-// Licensed under the Apache License, Version 2.0 (the "License");
-// you may not use this file except in compliance with the License.
-// You may obtain a copy of the License at
-//
-//     http://www.apache.org/licenses/LICENSE-2.0
-//
-// Unless required by applicable law or agreed to in writing, software
-// distributed under the License is distributed on an "AS IS" BASIS,
-// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-// See the License for the specific language governing permissions and
-// limitations under the License.
+// SPDX-License-Identifier: Apache-2.0
+
+
 
 declare(strict_types=1);
 
diff --git a/src/quoteservice/app/routes.php b/src/quoteservice/app/routes.php
index 2f7d975..54a83fb 100644
--- a/src/quoteservice/app/routes.php
+++ b/src/quoteservice/app/routes.php
@@ -1,17 +1,8 @@
 <?php
 // Copyright The OpenTelemetry Authors
-//
-// Licensed under the Apache License, Version 2.0 (the "License");
-// you may not use this file except in compliance with the License.
-// You may obtain a copy of the License at
-//
-//     http://www.apache.org/licenses/LICENSE-2.0
-//
-// Unless required by applicable law or agreed to in writing, software
-// distributed under the License is distributed on an "AS IS" BASIS,
-// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-// See the License for the specific language governing permissions and
-// limitations under the License.
+// SPDX-License-Identifier: Apache-2.0
+
+
 
 use OpenTelemetry\API\Common\Instrumentation\Globals;
 use OpenTelemetry\API\Trace\Span;
diff --git a/src/quoteservice/app/settings.php b/src/quoteservice/app/settings.php
index 522851d..11e7b22 100644
--- a/src/quoteservice/app/settings.php
+++ b/src/quoteservice/app/settings.php
@@ -1,17 +1,8 @@
 <?php
 // Copyright The OpenTelemetry Authors
-//
-// Licensed under the Apache License, Version 2.0 (the "License");
-// you may not use this file except in compliance with the License.
-// You may obtain a copy of the License at
-//
-//     http://www.apache.org/licenses/LICENSE-2.0
-//
-// Unless required by applicable law or agreed to in writing, software
-// distributed under the License is distributed on an "AS IS" BASIS,
-// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-// See the License for the specific language governing permissions and
-// limitations under the License.
+// SPDX-License-Identifier: Apache-2.0
+
+
 
 declare(strict_types=1);
 
diff --git a/src/quoteservice/public/index.php b/src/quoteservice/public/index.php
index 1022ed4..071b648 100644
--- a/src/quoteservice/public/index.php
+++ b/src/quoteservice/public/index.php
@@ -1,17 +1,8 @@
 <?php
 // Copyright The OpenTelemetry Authors
-//
-// Licensed under the Apache License, Version 2.0 (the "License");
-// you may not use this file except in compliance with the License.
-// You may obtain a copy of the License at
-//
-//     http://www.apache.org/licenses/LICENSE-2.0
-//
-// Unless required by applicable law or agreed to in writing, software
-// distributed under the License is distributed on an "AS IS" BASIS,
-// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-// See the License for the specific language governing permissions and
-// limitations under the License.
+// SPDX-License-Identifier: Apache-2.0
+
+
 
 declare(strict_types=1);
 
diff --git a/src/quoteservice/src/Application/Settings/Settings.php b/src/quoteservice/src/Application/Settings/Settings.php
index 332de16..b13fe4c 100644
--- a/src/quoteservice/src/Application/Settings/Settings.php
+++ b/src/quoteservice/src/Application/Settings/Settings.php
@@ -1,17 +1,8 @@
 <?php
 // Copyright The OpenTelemetry Authors
-//
-// Licensed under the Apache License, Version 2.0 (the "License");
-// you may not use this file except in compliance with the License.
-// You may obtain a copy of the License at
-//
-//     http://www.apache.org/licenses/LICENSE-2.0
-//
-// Unless required by applicable law or agreed to in writing, software
-// distributed under the License is distributed on an "AS IS" BASIS,
-// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-// See the License for the specific language governing permissions and
-// limitations under the License.
+// SPDX-License-Identifier: Apache-2.0
+
+
 
 declare(strict_types=1);
 
diff --git a/src/quoteservice/src/Application/Settings/SettingsInterface.php b/src/quoteservice/src/Application/Settings/SettingsInterface.php
index 75fdfd1..0a1a586 100644
--- a/src/quoteservice/src/Application/Settings/SettingsInterface.php
+++ b/src/quoteservice/src/Application/Settings/SettingsInterface.php
@@ -1,17 +1,8 @@
 <?php
 // Copyright The OpenTelemetry Authors
-//
-// Licensed under the Apache License, Version 2.0 (the "License");
-// you may not use this file except in compliance with the License.
-// You may obtain a copy of the License at
-//
-//     http://www.apache.org/licenses/LICENSE-2.0
-//
-// Unless required by applicable law or agreed to in writing, software
-// distributed under the License is distributed on an "AS IS" BASIS,
-// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-// See the License for the specific language governing permissions and
-// limitations under the License.
+// SPDX-License-Identifier: Apache-2.0
+
+
 
 declare(strict_types=1);
 
diff --git a/src/recommendationservice/Dockerfile b/src/recommendationservice/Dockerfile
index 361ba06..99d2d5e 100644
--- a/src/recommendationservice/Dockerfile
+++ b/src/recommendationservice/Dockerfile
@@ -1,16 +1,6 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#      http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
+
 
 FROM python:3.10-slim-bullseye as base
 
diff --git a/src/recommendationservice/logger.py b/src/recommendationservice/logger.py
index bd66bd1..f22ed32 100644
--- a/src/recommendationservice/logger.py
+++ b/src/recommendationservice/logger.py
@@ -1,18 +1,8 @@
 #!/usr/bin/python
-#
 # Copyright The OpenTelemetry Authors
+# SPDX-License-Identifier: Apache-2.0
+#!/usr/bin/python
 #
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#      http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
 
 import logging
 import sys
diff --git a/src/recommendationservice/metrics.py b/src/recommendationservice/metrics.py
index 7e0c049..6564339 100644
--- a/src/recommendationservice/metrics.py
+++ b/src/recommendationservice/metrics.py
@@ -1,18 +1,9 @@
 #!/usr/bin/python
-#
 # Copyright The OpenTelemetry Authors
+# SPDX-License-Identifier: Apache-2.0
+#!/usr/bin/python
 #
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+
 
 def init_metrics(meter):
 
diff --git a/src/recommendationservice/recommendation_server.py b/src/recommendationservice/recommendation_server.py
index d1e80f1..e996193 100644
--- a/src/recommendationservice/recommendation_server.py
+++ b/src/recommendationservice/recommendation_server.py
@@ -1,18 +1,8 @@
 #!/usr/bin/python
-#
 # Copyright The OpenTelemetry Authors
+# SPDX-License-Identifier: Apache-2.0
+#!/usr/bin/python
 #
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#      http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
 
 # Python
 import os
diff --git a/src/shippingservice/Cargo.toml b/src/shippingservice/Cargo.toml
index 6d7893a..e48fd86 100644
--- a/src/shippingservice/Cargo.toml
+++ b/src/shippingservice/Cargo.toml
@@ -1,16 +1,4 @@
-# Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+
 
 [package]
 name = "shippingservice"
diff --git a/src/shippingservice/Dockerfile b/src/shippingservice/Dockerfile
index 4df302b..1aa220c 100644
--- a/src/shippingservice/Dockerfile
+++ b/src/shippingservice/Dockerfile
@@ -1,16 +1,6 @@
 # Copyright The OpenTelemetry Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
+
 
 FROM --platform=${BUILDPLATFORM} rust:1.61 as builder
 
diff --git a/src/shippingservice/build.rs b/src/shippingservice/build.rs
index b263c00..ca9084f 100644
--- a/src/shippingservice/build.rs
+++ b/src/shippingservice/build.rs
@@ -1,16 +1,5 @@
 // Copyright The OpenTelemetry Authors
-//
-// Licensed under the Apache License, Version 2.0 (the "License");
-// you may not use this file except in compliance with the License.
-// You may obtain a copy of the License at
-//
-//     http://www.apache.org/licenses/LICENSE-2.0
-//
-// Unless required by applicable law or agreed to in writing, software
-// distributed under the License is distributed on an "AS IS" BASIS,
-// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-// See the License for the specific language governing permissions and
-// limitations under the License.
+// SPDX-License-Identifier: Apache-2.0
 
 fn main() -> Result<(), Box<dyn std::error::Error>> {
     #[cfg(feature = "dockerproto")]
diff --git a/src/shippingservice/src/main.rs b/src/shippingservice/src/main.rs
index 8dd87c5..c946062 100644
--- a/src/shippingservice/src/main.rs
+++ b/src/shippingservice/src/main.rs
@@ -1,16 +1,5 @@
 // Copyright The OpenTelemetry Authors
-//
-// Licensed under the Apache License, Version 2.0 (the "License");
-// you may not use this file except in compliance with the License.
-// You may obtain a copy of the License at
-//
-//     http://www.apache.org/licenses/LICENSE-2.0
-//
-// Unless required by applicable law or agreed to in writing, software
-// distributed under the License is distributed on an "AS IS" BASIS,
-// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-// See the License for the specific language governing permissions and
-// limitations under the License.
+// SPDX-License-Identifier: Apache-2.0
 
 use opentelemetry::trace::TraceError;
 use opentelemetry::{
diff --git a/src/shippingservice/src/shipping_service.rs b/src/shippingservice/src/shipping_service.rs
index ebbfd99..9f9d08b 100644
--- a/src/shippingservice/src/shipping_service.rs
+++ b/src/shippingservice/src/shipping_service.rs
@@ -1,16 +1,5 @@
 // Copyright The OpenTelemetry Authors
-//
-// Licensed under the Apache License, Version 2.0 (the "License");
-// you may not use this file except in compliance with the License.
-// You may obtain a copy of the License at
-//
-//     http://www.apache.org/licenses/LICENSE-2.0
-//
-// Unless required by applicable law or agreed to in writing, software
-// distributed under the License is distributed on an "AS IS" BASIS,
-// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-// See the License for the specific language governing permissions and
-// limitations under the License.
+// SPDX-License-Identifier: Apache-2.0
 
 use opentelemetry::{global, propagation::Extractor, trace::Span, Context, KeyValue};
 use opentelemetry_api::trace::{FutureExt, TraceContextExt, SpanKind, Tracer};
diff --git a/src/shippingservice/src/shipping_service/quote.rs b/src/shippingservice/src/shipping_service/quote.rs
index 86d4d5d..0aa626f 100644
--- a/src/shippingservice/src/shipping_service/quote.rs
+++ b/src/shippingservice/src/shipping_service/quote.rs
@@ -1,16 +1,5 @@
 // Copyright The OpenTelemetry Authors
-//
-// Licensed under the Apache License, Version 2.0 (the "License");
-// you may not use this file except in compliance with the License.
-// You may obtain a copy of the License at
-//
-//     http://www.apache.org/licenses/LICENSE-2.0
-//
-// Unless required by applicable law or agreed to in writing, software
-// distributed under the License is distributed on an "AS IS" BASIS,
-// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-// See the License for the specific language governing permissions and
-// limitations under the License.
+// SPDX-License-Identifier: Apache-2.0
 
 use core::fmt;
 use std::{collections::HashMap, env};
diff --git a/src/shippingservice/src/shipping_service/tracking.rs b/src/shippingservice/src/shipping_service/tracking.rs
index 8b6a180..debbecf 100644
--- a/src/shippingservice/src/shipping_service/tracking.rs
+++ b/src/shippingservice/src/shipping_service/tracking.rs
@@ -1,16 +1,5 @@
 // Copyright The OpenTelemetry Authors
-//
-// Licensed under the Apache License, Version 2.0 (the "License");
-// you may not use this file except in compliance with the License.
-// You may obtain a copy of the License at
-//
-//     http://www.apache.org/licenses/LICENSE-2.0
-//
-// Unless required by applicable law or agreed to in writing, software
-// distributed under the License is distributed on an "AS IS" BASIS,
-// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-// See the License for the specific language governing permissions and
-// limitations under the License.
+// SPDX-License-Identifier: Apache-2.0
 
 use uuid::Uuid;
 
diff --git a/test/Dockerfile b/test/Dockerfile
index f314176..7942b90 100644
--- a/test/Dockerfile
+++ b/test/Dockerfile
@@ -1,16 +1,6 @@
-# Copyright 2020 Google LLC
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#      http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# Copyright The OpenTelemetry Authors
+# SPDX-License-Identifier: Apache-2.0
+
 
 FROM node:16-alpine AS build
 
diff --git a/test/test.js b/test/test.js
index 02840f1..0d6071a 100644
--- a/test/test.js
+++ b/test/test.js
@@ -1,16 +1,5 @@
 // Copyright The OpenTelemetry Authors
-//
-// Licensed under the Apache License, Version 2.0 (the "License");
-// you may not use this file except in compliance with the License.
-// You may obtain a copy of the License at
-//
-//     http://www.apache.org/licenses/LICENSE-2.0
-//
-// Unless required by applicable law or agreed to in writing, software
-// distributed under the License is distributed on an "AS IS" BASIS,
-// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-// See the License for the specific language governing permissions and
-// limitations under the License.
+// SPDX-License-Identifier: Apache-2.0
 
 // Node
 const { promisify } = require("util");