diff --git a/.github/workflows/pr_create_dynamic_env.yaml b/.github/workflows/pr_create_dynamic_env.yaml
new file mode 100644
index 0000000..124f624
--- /dev/null
+++ b/.github/workflows/pr_create_dynamic_env.yaml
@@ -0,0 +1,49 @@
+name: PR Create Environment
+
+on:
+  pull_request:
+    types: [labeled, opened, synchronize, reopened, unlabeled, edited]
+
+concurrency:
+  group: ${{ github.workflow }}-${{ github.ref }}
+  cancel-in-progress: false
+
+jobs:
+  create-dynamic-environment:
+    name: Create Dynamic Environment
+    runs-on: ubuntu-latest
+
+    steps:
+      - name: Trigger nhs-notify-internal dynamic environment workflow
+        shell: bash
+        run: |
+          set -x
+          this_repo_name=$(echo ${{ github.repository }} | cut -d'/' -f2)
+
+          DISPATCH_EVENT=$(jq -ncM \
+            --arg infraRepoName "${this_repo_name}" \
+            --arg releaseVersion "${{ github.ref_name }}" \
+            --arg targetEnvironment "pr${{ github.event.number }}" \
+            --arg targetAccountGroup "nhs-notify-iam-dev" \
+            --arg targetComponent "branch" \
+            --arg terraformAction "apply" \
+            --arg overrides "branch_name=${{ github.ref_name }}" \
+            '{ "ref": "main",
+              "inputs": {
+                "infraRepoName": $infraRepoName,
+                "releaseVersion", $releaseVersion,
+                "targetEnvironment", $targetEnvironment,
+                "targetAccountGroup", $targetAccountGroup,
+                "targetComponent", $targetComponent,
+                "terraformAction", $terraformAction,
+                "overrides", $overrides,
+              }
+            }')
+
+          curl -L \
+            -X POST \
+            -H "Accept: application/vnd.github+json" \
+            -H "Authorization: Bearer ${{ secrets.PR_TRIGGER_PAT }}" \
+            -H "X-GitHub-Api-Version: 2022-11-28" \
+            https://api.github.com/repos/NHSDigital/nhs-notify-internal/actions/workflows/dispatch-deploy-dynamic-env.yaml/dispatches \
+            -d "${DISPATCH_EVENT}"
diff --git a/.github/workflows/pr_merge.yaml b/.github/workflows/pr_merge.yaml
new file mode 100644
index 0000000..46c79c0
--- /dev/null
+++ b/.github/workflows/pr_merge.yaml
@@ -0,0 +1,85 @@
+name: PR Merged
+
+on:
+  pull_request:
+    types: [closed]
+
+concurrency:
+  group: ${{ github.workflow }}-${{ github.ref }}
+  cancel-in-progress: false
+
+jobs:
+  destroy-dynamic-environment:
+    name: Destroy Dynamic Environment
+    runs-on: ubuntu-latest
+
+    steps:
+      - name: Trigger nhs-notify-internal dynamic environment workflow
+        shell: bash
+        run: |
+          set -x
+          this_repo_name=$(echo ${{ github.repository }} | cut -d'/' -f2)
+
+          DISPATCH_EVENT=$(jq -ncM \
+            --arg infraRepoName "${this_repo_name}" \
+            --arg releaseVersion "${{ github.ref_name }}" \
+            --arg targetEnvironment "pr${{ github.event.number }}" \
+            --arg targetAccountGroup "nhs-notify-iam-dev" \
+            --arg targetComponent "branch" \
+            --arg terraformAction "destroy" \
+            --arg overrides "branch_name=${{ github.ref_name }}" \
+            '{ "ref": "main",
+              "inputs": {
+                "infraRepoName": $infraRepoName,
+                "releaseVersion", $releaseVersion,
+                "targetEnvironment", $targetEnvironment,
+                "targetAccountGroup", $targetAccountGroup,
+                "targetComponent", $targetComponent,
+                "terraformAction", $terraformAction,
+                "overrides", $overrides,
+              }
+            }')
+
+          curl -L \
+            -X POST \
+            -H "Accept: application/vnd.github+json" \
+            -H "Authorization: Bearer ${{ secrets.PR_TRIGGER_PAT }}" \
+            -H "X-GitHub-Api-Version: 2022-11-28" \
+            https://api.github.com/repos/NHSDigital/nhs-notify-internal/actions/workflows/dispatch-deploy-dynamic-env.yaml/dispatches \
+            -d "${DISPATCH_EVENT}"
+
+  deploy-main:
+    name: Deploy changes to main
+    runs-on: ubuntu-latest
+    steps:
+      - name: Trigger nhs-notify-internal static environment workflow deployment
+        shell: bash
+        run: |
+          set -x
+          this_repo_name=$(echo ${{ github.repository }} | cut -d'/' -f2)
+
+          DISPATCH_EVENT=$(jq -ncM \
+            --arg infraRepoName "${this_repo_name}" \
+            --arg releaseVersion "main" \
+            --arg targetEnvironment "main" \
+            --arg targetAccountGroup "nhs-notify-iam-dev" \
+            --arg targetComponent "branch" \
+            --arg terraformAction "apply" \
+            '{ "ref": "main",
+              "inputs": {
+                "infraRepoName": $infraRepoName,
+                "releaseVersion", $releaseVersion,
+                "targetEnvironment", $targetEnvironment,
+                "targetAccountGroup", $targetAccountGroup,
+                "targetComponent", $targetComponent,
+                "terraformAction", $terraformAction
+              }
+            }')
+
+          curl -L \
+            -X POST \
+            -H "Accept: application/vnd.github+json" \
+            -H "Authorization: Bearer ${{ secrets.PR_TRIGGER_PAT }}" \
+            -H "X-GitHub-Api-Version: 2022-11-28" \
+            https://api.github.com/repos/NHSDigital/nhs-notify-internal/actions/workflows/dispatch-deploy-static-env.yaml/dispatches \
+            -d "${DISPATCH_EVENT}"