diff --git a/docs/plans/2026-09-11-mes-reportable-alarm-flag-design.md b/docs/plans/2026-09-11-mes-reportable-alarm-flag-design.md
index 8e8ebcec..34ade192 100644
--- a/docs/plans/2026-09-11-mes-reportable-alarm-flag-design.md
+++ b/docs/plans/2026-09-11-mes-reportable-alarm-flag-design.md
@@ -1,7 +1,7 @@
 # MES-Reportable Alarm Flag — Design
 
 **Date:** 2026-09-11
-**Status:** IMPLEMENTED 2026-09-11 (rig gate pending — see §8 once Task 14 lands).
+**Status:** IMPLEMENTED 2026-09-11 — merged to main @ 4cfa645b; rig live gate PASS 14/14 + Playwright override round-trip PASS (§8). QA/prod NOT deployed (remote exec on hold).
 **Supersedes (partially):** the severity-band decision in
 [`2026-06-30-mes-alarm-status-api.md`](2026-06-30-mes-alarm-status-api.md) §6.1 for **computed**
 alarms only (native alarms keep the band — see §2.3).