diff --git a/Engineering_Reference_Manual_Plan.md b/Engineering_Reference_Manual_Plan.md
index 0056611a..3b0aa05d 100644
--- a/Engineering_Reference_Manual_Plan.md
+++ b/Engineering_Reference_Manual_Plan.md
@@ -1,5 +1,7 @@
 # Engineering Reference Manual Update Plan
 
+**Status: ✅ COMPLETE** — all 9 batches reviewed, corrected, committed, and pushed to `dev`.
+
 Goal: bring `docs/Engineering_Reference_Manual.md` into alignment with the current
 relationship-app codebase. Verify every claim, file path, function name,
 collection name, and architectural fact. Never assume.