diff --git a/.gitmodules b/.gitmodules
new file mode 100644
index 0000000000..c66f1e0c04
--- /dev/null
+++ b/.gitmodules
@@ -0,0 +1,5 @@
+[submodule "toolchains/nv_workspaces"]
+	path = toolchains/nv_workspaces
+	url = ssh://git@gitlab-master.nvidia.com:12051/torch-tensorrt/WORKSPACES.git
+	branch = master
+	ignore = dirty
\ No newline at end of file
diff --git a/.pre-commit-config.yaml b/.pre-commit-config.yaml
index 1e04df038c..ac0c05c015 100644
--- a/.pre-commit-config.yaml
+++ b/.pre-commit-config.yaml
@@ -27,4 +27,13 @@ repos:
     -   id: buildifier
         args:
           - --warnings=all
-    -   id: buildifier-lint
\ No newline at end of file
+    -   id: buildifier-lint
+  - repo: local
+    hooks:
+    -   id: dont-commit-upstream
+        name: NVIDIA-INTERNAL check
+        entry: "!NVIDIA-INTERNAL"
+        exclude: "^.pre-commit-config.yaml"
+        language: pygrep
+        types: [text]
+
diff --git a/toolchains/nv_workspaces b/toolchains/nv_workspaces
new file mode 160000
index 0000000000..9a6a3e18dc
--- /dev/null
+++ b/toolchains/nv_workspaces
@@ -0,0 +1 @@
+Subproject commit 9a6a3e18dc5fb47aae82a19816f759a93b3e4cc3