diff --git a/terraform/README.md b/terraform/README.md
index 18bd7b2a..1c97c9bf 100644
--- a/terraform/README.md
+++ b/terraform/README.md
@@ -222,7 +222,9 @@ the labels. Push-to-`dev` releases return behind the repository variable
   allowed alongside. A reviewer may add the `terraform-isolation-override`
   label for the rare change that must introduce Terraform variables together
   with the workflow that consumes them (PR A and PR C). The label is the
-  approval record.
+  approval record. The override is temporary: a follow-up PR after PR C
+  removes the label path from the checker and workflow so the gate has no
+  exception.
 - **Every Terraform merge produces a VCS run.** A human confirms or discards
   it before the next content release. Do not leave a pending run on the
   workspace.