diff --git a/.github/workflows/pr-checks-master-v2.yml b/.github/workflows/pr-checks-master-v2.yml
new file mode 100644
index 0000000000..2004af5ea5
--- /dev/null
+++ b/.github/workflows/pr-checks-master-v2.yml
@@ -0,0 +1,97 @@
+name: Sagemaker PR Checks (Master-v2)
+on:
+  pull_request_target:
+    branches:
+      - "master-v2"
+
+concurrency:
+  group: ${{ github.workflow }}-${{ github.event.pull_request.number || github.head_ref }}
+  cancel-in-progress: true
+
+permissions:
+  id-token: write
+
+jobs:
+  collab-check:
+    runs-on: ubuntu-latest
+    outputs: 
+      approval-env: ${{ steps.collab-check.outputs.result }}
+    steps:
+      - name: Collaborator Check
+        uses: actions/github-script@v7
+        id: collab-check
+        with:
+          github-token: ${{ secrets.COLLAB_CHECK_TOKEN }}
+          result-encoding: string
+          script: | 
+            try {
+              const res = await github.rest.repos.checkCollaborator({
+                owner: context.repo.owner,
+                repo: context.repo.repo,
+                username: "${{ github.event.pull_request.user.login }}",
+              });
+              console.log("Verifed ${{ github.event.pull_request.user.login }} is a repo collaborator. Auto Approving PR Checks.")
+              return res.status == "204" ? "auto-approve" : "manual-approval"
+            } catch (error) {
+              console.log("${{ github.event.pull_request.user.login }} is not a collaborator. Requiring Manual Approval to run PR Checks.")
+              return "manual-approval"
+            }
+  wait-for-approval:
+    runs-on: ubuntu-latest
+    needs: [collab-check]
+    environment: ${{ needs.collab-check.outputs.approval-env }}
+    steps:
+      - run: echo "Workflow Approved! Starting PR Checks."
+  codestyle-doc-tests:
+    runs-on: ubuntu-latest
+    needs: [wait-for-approval]
+    steps: 
+      - name: Configure AWS Credentials
+        uses: aws-actions/configure-aws-credentials@v4
+        with:
+          role-to-assume: ${{ secrets.CI_AWS_ROLE_ARN }}
+          aws-region: us-west-2
+          role-duration-seconds: 10800
+      - name: Run Codestyle & Doc Tests
+        uses: aws-actions/aws-codebuild-run-build@v1
+        with:
+          project-name: ${{ github.event.repository.name }}-ci-codestyle-doc-tests
+          source-version-override: 'refs/pull/${{ github.event.pull_request.number }}/head^{${{ github.event.pull_request.head.sha }}}'
+  unit-tests:
+    runs-on: ubuntu-latest
+    needs: [wait-for-approval]
+    strategy:
+        fail-fast: false
+        matrix:
+          python-version: ["py39","py310","py311","py312"]
+    steps:
+      - name: Configure AWS Credentials
+        uses: aws-actions/configure-aws-credentials@v4
+        with:
+          role-to-assume: ${{ secrets.CI_AWS_ROLE_ARN }}
+          aws-region: us-west-2
+          role-duration-seconds: 10800
+      - name: Run Unit Tests
+        uses: aws-actions/aws-codebuild-run-build@v1
+        with:
+          project-name: ${{ github.event.repository.name }}-ci-unit-tests
+          source-version-override: 'refs/pull/${{ github.event.pull_request.number }}/head^{${{ github.event.pull_request.head.sha }}}'
+          env-vars-for-codebuild: |
+            PY_VERSION
+        env:
+          PY_VERSION: ${{ matrix.python-version }}
+  integ-tests:
+    runs-on: ubuntu-latest
+    needs: [wait-for-approval]
+    steps: 
+      - name: Configure AWS Credentials
+        uses: aws-actions/configure-aws-credentials@v4
+        with:
+          role-to-assume: ${{ secrets.CI_AWS_ROLE_ARN }}
+          aws-region: us-west-2
+          role-duration-seconds: 10800
+      - name: Run Integ Tests
+        uses: aws-actions/aws-codebuild-run-build@v1
+        with:
+          project-name: ${{ github.event.repository.name }}-ci-integ-tests
+          source-version-override: 'refs/pull/${{ github.event.pull_request.number }}/head^{${{ github.event.pull_request.head.sha }}}'
diff --git a/.github/workflows/pr-checks.yml b/.github/workflows/pr-checks-master.yml
similarity index 68%
rename from .github/workflows/pr-checks.yml
rename to .github/workflows/pr-checks-master.yml
index 5bcffb6031..12ed361742 100644
--- a/.github/workflows/pr-checks.yml
+++ b/.github/workflows/pr-checks-master.yml
@@ -1,8 +1,13 @@
-name: Sagemaker PR Checks
+name: Sagemaker PR Checks (Master)
 on:
   pull_request_target:
     branches:
-      - "master*"
+      - "master"
+    paths:
+      - 'sagemaker-train/**'
+      - 'sagemaker-serve/**'
+      - 'sagemaker-mlops/**'
+      - 'sagemaker-core/**'
 
 concurrency:
   group: ${{ github.workflow }}-${{ github.event.pull_request.number || github.head_ref }}
@@ -45,26 +50,24 @@ jobs:
   detect-changes:
     runs-on: ubuntu-latest
     needs: [wait-for-approval]
-    if: github.event.pull_request.base.ref != 'master-v2'
     outputs:
       submodules: ${{ steps.check-changes.outputs.submodules }}
     steps:
       - uses: actions/checkout@v3
         with:
           fetch-depth: 0
-          token: ${{ secrets.GH_PAT }}  # or use appropriate token
-          ref: ${{ github.event.pull_request.base.ref }}  # Target branch (master-v3)
+          token: ${{ secrets.GH_PAT }}
+          ref: ${{ github.event.pull_request.base.ref }}
       - name: Detect Changes
         id: check-changes
         run: |
-          set -e  # Exit on error
+          set -e
           
-          # Debug information
           echo "Target Branch: ${{ github.event.pull_request.base.ref }}"
           echo "Current Target SHA: $(git rev-parse HEAD)"
           echo "PR Number: ${{ github.event.pull_request.number }}"
           echo "PR Latest SHA: ${{ github.event.pull_request.head.sha }}"
-          # Fetch PR without creating a branch
+          
           git fetch origin pull/${{ github.event.pull_request.number }}/head
           CHANGES=$(git diff --name-only HEAD FETCH_HEAD)
           
@@ -122,23 +125,6 @@ jobs:
           project-name: ${{ github.event.repository.name }}-ci-${{ matrix.submodule }}-codestyle-doc-tests
           source-version-override: 'refs/pull/${{ github.event.pull_request.number }}/head^{${{ github.event.pull_request.head.sha }}}'
 
-  codestyle-doc-tests-v2:
-    runs-on: ubuntu-latest
-    needs: [wait-for-approval]
-    if: github.event.pull_request.base.ref == 'master-v2'
-    steps: 
-      - name: Configure AWS Credentials
-        uses: aws-actions/configure-aws-credentials@v4
-        with:
-          role-to-assume: ${{ secrets.CI_AWS_ROLE_ARN }}
-          aws-region: us-west-2
-          role-duration-seconds: 10800
-      - name: Run Codestyle & Doc Tests
-        uses: aws-actions/aws-codebuild-run-build@v1
-        with:
-          project-name: ${{ github.event.repository.name }}-ci-codestyle-doc-tests
-          source-version-override: 'refs/pull/${{ github.event.pull_request.number }}/head^{${{ github.event.pull_request.head.sha }}}'
-
   unit-tests:
     runs-on: ubuntu-latest
     needs: [detect-changes]
@@ -161,31 +147,6 @@ jobs:
           project-name: ${{ github.event.repository.name }}-ci-${{ matrix.submodule }}-unit-tests
           source-version-override: 'refs/pull/${{ github.event.pull_request.number }}/head^{${{ github.event.pull_request.head.sha }}}'
 
-  unit-tests-v2:
-    runs-on: ubuntu-latest
-    needs: [wait-for-approval]
-    if: github.event.pull_request.base.ref == 'master-v2'
-    strategy:
-        fail-fast: false
-        matrix:
-          python-version: ["py39","py310","py311","py312"]
-    steps:
-      - name: Configure AWS Credentials
-        uses: aws-actions/configure-aws-credentials@v4
-        with:
-          role-to-assume: ${{ secrets.CI_AWS_ROLE_ARN }}
-          aws-region: us-west-2
-          role-duration-seconds: 10800
-      - name: Run Unit Tests
-        uses: aws-actions/aws-codebuild-run-build@v1
-        with:
-          project-name: ${{ github.event.repository.name }}-ci-unit-tests
-          source-version-override: 'refs/pull/${{ github.event.pull_request.number }}/head^{${{ github.event.pull_request.head.sha }}}'
-          env-vars-for-codebuild: |
-            PY_VERSION
-        env:
-          PY_VERSION: ${{ matrix.python-version }}
-
   integ-tests:
     runs-on: ubuntu-latest
     needs: [detect-changes]
@@ -207,20 +168,3 @@ jobs:
         with:
           project-name: ${{ github.event.repository.name }}-ci-${{ matrix.submodule }}-integ-tests
           source-version-override: 'refs/pull/${{ github.event.pull_request.number }}/head^{${{ github.event.pull_request.head.sha }}}'
-
-  integ-tests-v2:
-    runs-on: ubuntu-latest
-    needs: [wait-for-approval]
-    if: github.event.pull_request.base.ref == 'master-v2'
-    steps: 
-      - name: Configure AWS Credentials
-        uses: aws-actions/configure-aws-credentials@v4
-        with:
-          role-to-assume: ${{ secrets.CI_AWS_ROLE_ARN }}
-          aws-region: us-west-2
-          role-duration-seconds: 10800
-      - name: Run Integ Tests
-        uses: aws-actions/aws-codebuild-run-build@v1
-        with:
-          project-name: ${{ github.event.repository.name }}-ci-integ-tests
-          source-version-override: 'refs/pull/${{ github.event.pull_request.number }}/head^{${{ github.event.pull_request.head.sha }}}'