diff --git a/conductor/tier2/githooks/pre-push b/conductor/tier2/githooks/pre-push
new file mode 100644
index 00000000..6d7c9eec
--- /dev/null
+++ b/conductor/tier2/githooks/pre-push
@@ -0,0 +1,7 @@
+#!/bin/sh
+# Tier 2 autonomous mode: `git push` is disabled.
+# The user pushes the branch manually from the main repo after review.
+
+echo "ERROR: Tier 2 autonomous mode: 'git push' is disabled." >&2
+echo "Push the branch manually from the main repo after review." >&2
+exit 1