diff --git a/.github/workflows/cicd-1-pull-request.yaml b/.github/workflows/cicd-1-pull-request.yaml
index 8b17d963..762e174f 100644
--- a/.github/workflows/cicd-1-pull-request.yaml
+++ b/.github/workflows/cicd-1-pull-request.yaml
@@ -5,9 +5,9 @@ name: "CI/CD pull request"
 on:
   push:
     branches:
-      - "**"
+      - "!main"
   pull_request:
-    types: [opened, reopened, closed]
+    types: [opened, reopened]
 
 jobs:
   metadata:
@@ -65,6 +65,7 @@ jobs:
           export TERRAFORM_VERSION="${{ steps.variables.outputs.terraform_version }}"
           export VERSION="${{ steps.variables.outputs.version }}"
           export DOES_PULL_REQUEST_EXIST="${{ steps.pr_exists.outputs.does_pull_request_exist }}"
+          export BRANCH_NAME="${{ github.head_ref }}"
           make list-variables
   commit-stage: # Recommended maximum execution time is 2 minutes
     name: "Commit stage"
@@ -96,7 +97,7 @@ jobs:
     name: "Build stage"
     needs: [metadata, test-stage]
     uses: ./.github/workflows/stage-3-build.yaml
-    if: needs.metadata.outputs.does_pull_request_exist == 'true' || (github.event_name == 'pull_request' && (github.event.action == 'opened' || github.event.action == 'reopened' || (github.event.action == 'closed' && github.event.pull_request.merged == true)))
+    if: needs.metadata.outputs.does_pull_request_exist == 'true' || (github.event_name == 'pull_request' && (github.event.action == 'opened' || github.event.action == 'reopened'))
     with:
       build_datetime: "${{ needs.metadata.outputs.build_datetime }}"
       build_timestamp: "${{ needs.metadata.outputs.build_timestamp }}"
diff --git a/.github/workflows/cicd-2-main-branch.yaml b/.github/workflows/cicd-2-main-branch.yaml
new file mode 100644
index 00000000..07641d68
--- /dev/null
+++ b/.github/workflows/cicd-2-main-branch.yaml
@@ -0,0 +1,103 @@
+name: "CI/CD pull request"
+
+# The total recommended execution time for the "CI/CD Pull Request" workflow is around 20 minutes.
+
+on:
+  push:
+    branches:
+      - main
+
+jobs:
+  metadata:
+    name: "Set CI/CD metadata"
+    runs-on: ubuntu-latest
+    timeout-minutes: 1
+    outputs:
+      build_datetime_london: ${{ steps.variables.outputs.build_datetime_london }}
+      build_datetime: ${{ steps.variables.outputs.build_datetime }}
+      build_timestamp: ${{ steps.variables.outputs.build_timestamp }}
+      build_epoch: ${{ steps.variables.outputs.build_epoch }}
+      nodejs_version: ${{ steps.variables.outputs.nodejs_version }}
+      python_version: ${{ steps.variables.outputs.python_version }}
+      terraform_version: ${{ steps.variables.outputs.terraform_version }}
+      version: ${{ steps.variables.outputs.version }}
+    steps:
+      - name: "Checkout code"
+        uses: actions/checkout@v5
+      - name: "Set CI/CD variables"
+        id: variables
+        run: |
+          datetime=$(date -u +'%Y-%m-%dT%H:%M:%S%z')
+          BUILD_DATETIME=$datetime make version-create-effective-file
+          echo "build_datetime_london=$(TZ=Europe/London date --date=$datetime +'%Y-%m-%dT%H:%M:%S%z')" >> $GITHUB_OUTPUT
+          echo "build_datetime=$datetime" >> $GITHUB_OUTPUT
+          echo "build_timestamp=$(date --date=$datetime -u +'%Y%m%d%H%M%S')" >> $GITHUB_OUTPUT
+          echo "build_epoch=$(date --date=$datetime -u +'%s')" >> $GITHUB_OUTPUT
+          echo "nodejs_version=$(grep "^nodejs\s" .tool-versions | cut -f2 -d' ')" >> $GITHUB_OUTPUT
+          echo "python_version=$(grep "^python\s" .tool-versions | cut -f2 -d' ')" >> $GITHUB_OUTPUT
+          echo "terraform_version=$(grep "^terraform\s" .tool-versions | cut -f2 -d' ')" >> $GITHUB_OUTPUT
+          echo "version=$(head -n 1 .version 2> /dev/null || echo unknown)" >> $GITHUB_OUTPUT
+      - name: "List variables"
+        run: |
+          export BUILD_DATETIME_LONDON="${{ steps.variables.outputs.build_datetime_london }}"
+          export BUILD_DATETIME="${{ steps.variables.outputs.build_datetime }}"
+          export BUILD_TIMESTAMP="${{ steps.variables.outputs.build_timestamp }}"
+          export BUILD_EPOCH="${{ steps.variables.outputs.build_epoch }}"
+          export NODEJS_VERSION="${{ steps.variables.outputs.nodejs_version }}"
+          export PYTHON_VERSION="${{ steps.variables.outputs.python_version }}"
+          export TERRAFORM_VERSION="${{ steps.variables.outputs.terraform_version }}"
+          export VERSION="${{ steps.variables.outputs.version }}"
+          export BRANCH_NAME="${{ github.head_ref }}"
+          make list-variables
+  commit-stage: # Recommended maximum execution time is 2 minutes
+    name: "Commit stage"
+    needs: [metadata]
+    uses: ./.github/workflows/stage-1-commit.yaml
+    with:
+      build_datetime: "${{ needs.metadata.outputs.build_datetime }}"
+      build_timestamp: "${{ needs.metadata.outputs.build_timestamp }}"
+      build_epoch: "${{ needs.metadata.outputs.build_epoch }}"
+      nodejs_version: "${{ needs.metadata.outputs.nodejs_version }}"
+      python_version: "${{ needs.metadata.outputs.python_version }}"
+      terraform_version: "${{ needs.metadata.outputs.terraform_version }}"
+      version: "${{ needs.metadata.outputs.version }}"
+    secrets: inherit
+  test-stage: # Recommended maximum execution time is 5 minutes
+    name: "Test stage"
+    needs: [metadata, commit-stage]
+    uses: ./.github/workflows/stage-2-test.yaml
+    with:
+      build_datetime: "${{ needs.metadata.outputs.build_datetime }}"
+      build_timestamp: "${{ needs.metadata.outputs.build_timestamp }}"
+      build_epoch: "${{ needs.metadata.outputs.build_epoch }}"
+      nodejs_version: "${{ needs.metadata.outputs.nodejs_version }}"
+      python_version: "${{ needs.metadata.outputs.python_version }}"
+      terraform_version: "${{ needs.metadata.outputs.terraform_version }}"
+      version: "${{ needs.metadata.outputs.version }}"
+    secrets: inherit
+  build-stage: # Recommended maximum execution time is 3 minutes
+    name: "Build stage"
+    needs: [metadata, test-stage]
+    uses: ./.github/workflows/stage-3-build.yaml
+    with:
+      build_datetime: "${{ needs.metadata.outputs.build_datetime }}"
+      build_timestamp: "${{ needs.metadata.outputs.build_timestamp }}"
+      build_epoch: "${{ needs.metadata.outputs.build_epoch }}"
+      nodejs_version: "${{ needs.metadata.outputs.nodejs_version }}"
+      python_version: "${{ needs.metadata.outputs.python_version }}"
+      terraform_version: "${{ needs.metadata.outputs.terraform_version }}"
+      version: "${{ needs.metadata.outputs.version }}"
+    secrets: inherit
+  acceptance-stage: # Recommended maximum execution time is 10 minutes
+    name: "Acceptance stage"
+    needs: [metadata, build-stage]
+    uses: ./.github/workflows/stage-4-acceptance.yaml
+    with:
+      build_datetime: "${{ needs.metadata.outputs.build_datetime }}"
+      build_timestamp: "${{ needs.metadata.outputs.build_timestamp }}"
+      build_epoch: "${{ needs.metadata.outputs.build_epoch }}"
+      nodejs_version: "${{ needs.metadata.outputs.nodejs_version }}"
+      python_version: "${{ needs.metadata.outputs.python_version }}"
+      terraform_version: "${{ needs.metadata.outputs.terraform_version }}"
+      version: "${{ needs.metadata.outputs.version }}"
+    secrets: inherit