diff --git a/.github/workflows/track-review-project.yaml b/.github/workflows/track-review-project.yaml
new file mode 100644
index 0000000..ff91537
--- /dev/null
+++ b/.github/workflows/track-review-project.yaml
@@ -0,0 +1,202 @@
+# ------------------------------------------------------------------------------
+# (c) Crown copyright Met Office. All rights reserved.
+# The file LICENCE, distributed with this code, contains details of the terms
+# under which the code may be used.
+# ------------------------------------------------------------------------------
+
+# This workflow runs whenever a pull request in the repository is marked as
+# "Ready for review" (i.e., a non-Draft PR).
+name: Track Review Project
+on:
+  workflow_call:
+    inputs:
+      runner:
+        description: 'The runner to use for the job'
+        required: false
+        type: string
+        default: 'ubuntu-24.04'
+      project_org:
+        description: 'The organization that owns the project'
+        required: false
+        type: string
+        default: 'MetOffice'
+      project_number:
+        description: 'The project number'
+        required: false
+        type: number
+        default: 376  # Simulation Systems Review Tracker
+
+permissions:
+  actions: read
+  contents: read
+  pull-requests: write
+
+jobs:
+  track_project:
+    runs-on: ${{ inputs.runner }}
+    timeout-minutes: 5
+    env:
+      REPO: ${{ github.repository }}
+
+    steps:
+      # Required as running from the workflow_run trigger
+      - name: Checkout repo
+        uses: actions/checkout@v6
+
+      - name: Download PR data artifact
+        uses: actions/github-script@v8
+        with:
+          github-token: ${{ secrets.GITHUB_TOKEN }}
+          script: |
+            let allArtifacts = await github.rest.actions.listWorkflowRunArtifacts({
+               owner: context.repo.owner,
+               repo: context.repo.repo,
+               run_id: context.payload.workflow_run.id,
+            });
+
+            let matchArtifact = allArtifacts.data.artifacts.filter((artifact) => {
+              return artifact.name == "context.json"
+            })[0];
+
+            let download = await github.rest.actions.downloadArtifact({
+               owner: context.repo.owner,
+               repo: context.repo.repo,
+               artifact_id: matchArtifact.id,
+               archive_format: 'zip',
+            });
+
+            let fs = require('fs');
+            fs.writeFileSync(`${process.env.GITHUB_WORKSPACE}/context.zip`, Buffer.from(download.data));
+
+      - name: Extract PR Data
+        run: |
+          unzip context.zip
+          pr_num=$(jq -r '.pr_num' context.json)
+          pr_id=$(jq -r '.pr_id' context.json)
+          echo "PR_NUM=$pr_num" >> $GITHUB_ENV
+          echo "PR_ID=$pr_id" >> $GITHUB_ENV
+
+      - name: Assign Author if no assignees
+        env:
+          GH_TOKEN: ${{ github.token }}
+        run: |
+          pr_data=$(gh pr view -R "$REPO" "$PR_NUM" --json assignees,author)
+          if [[ $(echo "$pr_data" | jq '.assignees | length') -eq 0 ]]; then
+            author=$(echo "$pr_data" | jq -r '.author.login')
+            gh pr edit -R "$REPO" "$PR_NUM" --add-assignee "$author"
+          fi
+
+      - name: Extract reviewers and determine state
+        env:
+          GH_TOKEN: ${{ github.token }}
+        run: |
+          pr_data=$(gh pr view -R "$REPO" "$PR_NUM" --json body,reviews,reviewRequests)
+
+          # Extract reviewers from PR body
+          pr_body=$(echo "$pr_data" | jq -r '.body')
+          scitech_reviewer=$(echo "$pr_body" | grep -oP "Sci/Tech Reviewer:\s?@\K([\w\-]{1,39})\b" || true)
+          code_reviewer=$(echo "$pr_body" | grep -oP "Code Reviewer:\s?@\K([\w\-]{1,39})\b" || true)
+
+          echo "Expected SciTech Reviewer: ${scitech_reviewer:-None}"
+          echo "Expected Code Reviewer: ${code_reviewer:-None}"
+          echo "SCITECH_REVIEWER=$scitech_reviewer" >> $GITHUB_ENV
+          echo "CODE_REVIEWER=$code_reviewer" >> $GITHUB_ENV
+
+          # Determine review state
+          reviews=$(echo "$pr_data" | jq -c '{reviews, reviewRequests}')
+          sr_requested=$(echo "$reviews" | jq --arg sr "$scitech_reviewer" '[.reviewRequests[] | select(.login == $sr)] | length')
+          cr_requested=$(echo "$reviews" | jq --arg cr "$code_reviewer" '[.reviewRequests[] | select(.login == $cr)] | length')
+
+          # Determine required state
+          sr_approved=$(echo "$reviews" | jq --arg sr "$scitech_reviewer" '[.reviews[] | select(.author.login == $sr and .state == "APPROVED")] | length')
+          sr_changes=$(echo "$reviews" | jq --arg sr "$scitech_reviewer" '[.reviews[] | select(.author.login == $sr and (.state == "CHANGES_REQUESTED" or .state == "COMMENTED"))] | length')
+
+          [[ ! -z "$scitech_reviewer" ]] && [[ "$sr_requested" -eq 0 ]] && [[ "$sr_approved" -eq 0 ]] && [[ "$sr_changes" -eq 0 ]] && echo "SR_REQUEST_REQUIRED=true" >> $GITHUB_ENV
+
+          if [[ -z "$scitech_reviewer" ]] && [[ "$cr_requested" -gt 0 ]]; then
+            echo "No SR set and CR requested so assuming this is trivial"
+          else
+            if [[ "$sr_approved" -eq 0 ]]; then
+              if [[ -z "$scitech_reviewer" ]] && [[ "$sr_changes" -eq 0 ]]; then
+                required_state="In Progress"
+              elif [[ "$sr_changes" -gt 0 ]] && [[ "$sr_requested" -eq 0 ]]; then
+                required_state="Changes Requested"
+              else
+                required_state="SciTech Review"
+              fi
+              echo "REQUIRED_STATE=$required_state" >> $GITHUB_ENV
+              exit 0
+            fi
+          fi
+
+          cr_approved=$(echo "$reviews" | jq --arg cr "$code_reviewer" '[.reviews[] | select(.author.login == $cr and .state == "APPROVED")] | length')
+          cr_changes=$(echo "$reviews" | jq --arg cr "$code_reviewer" '[.reviews[] | select(.author.login == $cr and (.state == "CHANGES_REQUESTED" or .state == "COMMENTED"))] | length')
+
+          if [[ "$cr_approved" -gt 0 ]]; then
+            required_state="Approved"
+          elif [[ "cr_changes" -eq 0 ]] && [[ "$cr_requested" -eq 0 ]] && [[ "$sr_approved" -eq 0 ]]; then
+            required_state="In Progress"
+          elif [[ "$cr_changes" -gt 0 ]] && [[ "$cr_requested" -eq 0 ]]; then
+            required_state="Changes Requested"
+          else
+            required_state="Code Review"
+            [[ "$cr_requested" -eq 0 ]] && [[ "$cr_approved" -eq 0 ]] && [[ "$cr_changes" -eq 0 ]] && echo "CR_REQUEST_REQUIRED=true" >> $GITHUB_ENV
+          fi
+
+          echo "REQUIRED_STATE=$required_state" >> $GITHUB_ENV
+
+      - name: Request SciTech review, if needed
+        if: env.SR_REQUEST_REQUIRED == 'true' && env.REQUIRED_STATE == 'SciTech Review' && env.SCITECH_REVIEWER != ''
+        env:
+          GH_TOKEN: ${{ github.token }}
+        run: |
+          gh pr edit -R "$REPO" "$PR_NUM" --add-reviewer "$SCITECH_REVIEWER"
+
+      - name: Request code review, if needed
+        if: env.CR_REQUEST_REQUIRED == 'true' && env.REQUIRED_STATE == 'Code Review' && env.CODE_REVIEWER != ''
+        env:
+          GH_TOKEN: ${{ github.token }}
+        run: |
+          gh pr edit -R "$REPO" "$PR_NUM" --add-reviewer "$CODE_REVIEWER"
+
+      - name: Update project tracking
+        env:
+          GH_TOKEN: ${{ secrets.PROJECT_ACTION_PAT }}
+        run: |
+          # Get project data
+          project_data=$(gh api graphql -f query='
+            query($org: String!, $number: Int!) {
+              organization(login: $org){
+                projectV2(number: $number) {
+                  id
+                  fields(first:20) {
+                    nodes {
+                      ... on ProjectV2Field { id name }
+                      ... on ProjectV2SingleSelectField { id name options { id name } }
+                    }
+                  }
+                }
+              }
+            }' -f org=${{ inputs.project_org }} -F number=${{ inputs.project_number }})
+
+          project_id=$(echo "$project_data" | jq -r '.data.organization.projectV2.id')
+          status_field_id=$(echo "$project_data" | jq -r '.data.organization.projectV2.fields.nodes[] | select(.name== "Status") | .id')
+          status_option_id=$(echo "$project_data" | jq -r --arg status "$REQUIRED_STATE" '.data.organization.projectV2.fields.nodes[] | select(.name== "Status") | .options[] | select(.name==$status) | .id')
+          scitech_field_id=$(echo "$project_data" | jq -r '.data.organization.projectV2.fields.nodes[] | select(.name== "SciTech Review") | .id')
+          code_field_id=$(echo "$project_data" | jq -r '.data.organization.projectV2.fields.nodes[] | select(.name== "Code Review") | .id')
+
+          # Add PR to project and update fields
+          item_id=$(gh api graphql -f query='
+            mutation($project:ID!, $pr:ID!) {
+              addProjectV2ItemById(input: {projectId: $project, contentId: $pr}) {
+                item { id }
+              }
+            }' -f project="$project_id" -f pr="$PR_ID" --jq '.data.addProjectV2ItemById.item.id')
+
+          # Update all fields in single mutation
+          gh api graphql -f query='
+            mutation($project: ID!, $item: ID!, $status_field: ID!, $status_value: String!, $cr_field: ID!, $cr_value: String!, $sr_field: ID!, $sr_value: String!) {
+              set_status: updateProjectV2ItemFieldValue(input: {projectId: $project, itemId: $item, fieldId: $status_field, value: {singleSelectOptionId: $status_value}}) { projectV2Item { id } }
+              set_code_review: updateProjectV2ItemFieldValue(input: {projectId: $project, itemId: $item, fieldId: $cr_field, value: {text: $cr_value}}) { projectV2Item { id } }
+              set_scitech_review: updateProjectV2ItemFieldValue(input: {projectId: $project, itemId: $item, fieldId: $sr_field, value: {text: $sr_value}}) { projectV2Item { id } }
+            }' -f project="$project_id" -f item="$item_id" -f status_field="$status_field_id" -f status_value="$status_option_id" -f cr_field="$code_field_id" -f cr_value="$CODE_REVIEWER" -f sr_field="$scitech_field_id" -f sr_value="$SCITECH_REVIEWER" --silent
diff --git a/.github/workflows/trigger-project-workflow.yaml b/.github/workflows/trigger-project-workflow.yaml
new file mode 100644
index 0000000..6fa7e72
--- /dev/null
+++ b/.github/workflows/trigger-project-workflow.yaml
@@ -0,0 +1,34 @@
+# ------------------------------------------------------------------------------
+# (c) Crown copyright Met Office. All rights reserved.
+# The file LICENCE, distributed with this code, contains details of the terms
+# under which the code may be used.
+# ------------------------------------------------------------------------------
+
+# This workflow acts as a triggering workflow (via on: workflow_run) for the
+# track-review-project workflow. It uploads an artifact containing PR data for
+# the latter
+name: Trigger Review Project
+
+on:
+  workflow_call:
+
+permissions:
+  contents: read
+  pull-requests: write
+
+jobs:
+  trigger_project:
+    runs-on: ubuntu-latest
+    timeout-minutes: 5
+    env:
+      PR_NUM: ${{ github.event.pull_request.number }}
+      PR_ID: ${{ github.event.pull_request.node_id }}
+    steps:
+      - name: Triggering Workflow
+        run: |
+          echo "{\"pr_num\": $PR_NUM, \"pr_id\": \"$PR_ID\"}" >> context.json
+      - uses: actions/upload-artifact@v6
+        with:
+          name: context.json
+          path: context.json
+          retention-days: 1
diff --git a/track-review-project/README.md b/track-review-project/README.md
new file mode 100644
index 0000000..fd1d938
--- /dev/null
+++ b/track-review-project/README.md
@@ -0,0 +1,56 @@
+# Track Review Project Action
+
+This action modifies the Simulation Systems Review Tracker project entries in
+pull requests. It will automatically fill the reviewer fields based on the
+entries in the pull request template. It will change the state based on reviews
+requested and performed. If a CR hasn't been requested, it will do so when
+moving to the CR state. It will also add the PR author as an assignee if none
+exist.
+
+In order for this to work with forks when reviews are completed, a triggering
+workflow is also required. This can be shown by the "Trigger Project Workflow"
+yaml file below. The "Track Action Project" workflow is triggered by this
+workflow via github "workflow_run" syntax.
+
+It requires a PAT with permissions to write to projects to be added as a secret
+to the repository with the name `PROJECT_ACTION_PAT`. Project edits made using
+this token will be shown as performed by the owner of the token.
+
+## Usage
+
+```yaml
+name: Track Review Project
+
+on:
+  workflow_run:
+    workflows: [Trigger Review Project]
+    types:
+      - completed
+  workflow_dispatch:
+
+jobs:
+  track_review_project:
+    uses: MetOffice/growss/.github/workflows/track-review-project.yaml@main
+    secrets: inherit
+    # Optional inputs (with default values)
+    with:
+      runner: "ubuntu-22.04"
+      project_org: "MetOffice"
+      project_number: 376
+
+```
+
+```yaml
+name: Trigger Review Project
+
+on:
+  pull_request_target:
+    types: ["opened", "synchronize", "reopened", "edited", "review_requested", "review_request_removed"]
+  pull_request_review:
+  pull_request_review_comment:
+
+jobs:
+  trigger_project_workflow:
+    uses: MetOffice/growss/.github/workflows/trigger-project-workflow.yaml@main
+    secrets: inherit
+```