diff --git a/services/apps/alcs/src/providers/typeorm/migrations/1716918781617-update_mission_lg_id_on_application.ts b/services/apps/alcs/src/providers/typeorm/migrations/1716918781617-update_mission_lg_id_on_application.ts
new file mode 100644
index 000000000..41e6c15d9
--- /dev/null
+++ b/services/apps/alcs/src/providers/typeorm/migrations/1716918781617-update_mission_lg_id_on_application.ts
@@ -0,0 +1,109 @@
+import { MigrationInterface, QueryRunner } from 'typeorm';
+
+export class UpdateMissionLgIdOnApplication1716918781617
+  implements MigrationInterface
+{
+  public async up(queryRunner: QueryRunner): Promise<void> {
+    const submissionSelectCteQuery = `WITH alcs_submissions AS (
+        SELECT      alcs.application.file_number::bigint
+                    , alcs.application_submission.uuid AS "submission_uuid"
+                    , alcs.application_submission_status_type.label
+                    , alcs.application_submission_status_type.code
+                    , alcs.application_submission_to_submission_status.effective_date
+                    , alcs.application_submission.audit_created_by
+                    , alcs.application_submission.local_government_uuid
+        FROM        alcs.application
+        JOIN        alcs.application_submission ON alcs.application.file_number = alcs.application_submission.file_number AND alcs.application_submission.is_draft = FALSE
+        JOIN        alcs.application_submission_to_submission_status ON alcs.application_submission_to_submission_status.submission_uuid = alcs.application_submission.uuid
+        JOIN        alcs.application_submission_status_type ON  alcs.application_submission_status_type.code = alcs.application_submission_to_submission_status.status_type_code
+        WHERE       alcs.application_submission_status_type.code = 'SUBG'
+                AND alcs.application_submission_to_submission_status.effective_date IS NOT NULL
+                AND alcs.application.local_government_uuid IS NULL
+        order by    alcs.application.file_number::bigint
+        ),
+        oats_gov AS (
+                SELECT
+                    oaap.alr_application_id AS application_id,
+                    oo.organization_name AS oats_gov_name
+                FROM
+                    oats.oats_alr_application_parties oaap
+                    JOIN oats.oats_person_organizations opo ON oaap.person_organization_id = opo.person_organization_id
+                    JOIN oats.oats_organizations oo ON opo.organization_id = oo.organization_id
+                WHERE
+                    oo.organization_type_cd IN ('MUNI','FN','RD','RM')
+            )
+        , local_gov_uuid_to_set AS (
+            SELECT alcs_submissions.*, lg.uuid AS lg_uuid, oats_gov.oats_gov_name  FROM alcs_submissions
+            JOIN oats_gov ON oats_gov.application_id = alcs_submissions.file_number
+            LEFT JOIN alcs.local_government lg  ON TRIM(BOTH FROM LOWER(lg.name)) = TRIM(BOTH FROM LOWER(oats_gov.oats_gov_name))
+            WHERE lg.uuid IS NOT NULL
+        )`;
+
+    const applicationCteQuery = `
+        WITH applications_to_update AS (
+            SELECT a.uuid, a.local_government_uuid AS "application_lg_uuid", as2.local_government_uuid 
+            FROM alcs.application a
+            JOIN alcs.application_submission as2 ON a.file_number = as2.file_number AND as2.is_draft = FALSE AND as2.audit_created_by = 'oats_etl' 
+            WHERE 
+                a.local_government_uuid IS NULL 
+                AND as2.local_government_uuid IS NOT NULL 
+        )`;
+
+    await queryRunner.query(`
+        DO $$
+        BEGIN
+            -- backup source data
+            IF EXISTS (SELECT schema_name FROM information_schema.schemata WHERE schema_name = 'oats') THEN
+                CREATE TABLE IF NOT EXISTS public.backup_set_missing_lg_on_application_submission (
+                    alcs_submission_uuid UUID NOT NULL,
+                    alcs_submission_file_number TEXT NOT NULL,
+                    alcs_source_lg_uuid UUID,
+                    alcs_desired_lg_uuid UUID,
+                    oats_lg_name TEXT NOT NULL,
+                    PRIMARY KEY (alcs_submission_uuid)
+                );
+
+                COMMENT ON TABLE public.backup_set_missing_lg_on_application_submission IS 'This is a backup table for Application Submission LFNG UUID. Delete once confirmed that migration is successful.';
+
+                INSERT INTO public.backup_set_missing_lg_on_application_submission (alcs_submission_uuid, alcs_submission_file_number, alcs_source_lg_uuid, alcs_desired_lg_uuid, oats_lg_name)
+                ${submissionSelectCteQuery}
+                SELECT submission_uuid, file_number::text, local_government_uuid, lg_uuid, oats_gov_name FROM local_gov_uuid_to_set
+                ON CONFLICT DO NOTHING;
+            
+                -- update submission
+                ${submissionSelectCteQuery}
+                UPDATE alcs.application_submission 
+                SET local_government_uuid = local_gov_uuid_to_set.lg_uuid
+                FROM local_gov_uuid_to_set WHERE
+                local_gov_uuid_to_set.submission_uuid = alcs.application_submission.uuid;
+
+                -- backup application data
+                CREATE TABLE IF NOT EXISTS public.backup_set_missing_lg_on_application (
+                    alcs_application_uuid UUID NOT NULL,
+                    alcs_source_lg_uuid UUID,
+                    alcs_desired_lg_uuid UUID,
+                    PRIMARY KEY (alcs_application_uuid)
+                );
+                COMMENT ON TABLE public.backup_set_missing_lg_on_application IS 'This is a backup table for Application LFNG UUID. Delete once confirmed that migration is successful.';
+
+                INSERT INTO public.backup_set_missing_lg_on_application (alcs_application_uuid, alcs_source_lg_uuid, alcs_desired_lg_uuid)
+                ${applicationCteQuery}
+                SELECT uuid, application_lg_uuid, local_government_uuid
+                FROM applications_to_update
+                ON CONFLICT DO NOTHING;
+                
+                -- update applications
+                ${applicationCteQuery}
+                UPDATE alcs.application
+                SET  local_government_uuid = applications_to_update.local_government_uuid
+                FROM applications_to_update
+                WHERE  alcs.application.uuid = applications_to_update.uuid;
+            END IF;
+        END $$;
+    `);
+  }
+
+  public async down(): Promise<void> {
+    // nope
+  }
+}