diff --git a/docs/architecture/IMP-16-U2-WIRING-DESIGN.md b/docs/architecture/IMP-16-U2-WIRING-DESIGN.md
index 23ef253..0b1be50 100644
--- a/docs/architecture/IMP-16-U2-WIRING-DESIGN.md
+++ b/docs/architecture/IMP-16-U2-WIRING-DESIGN.md
@@ -1,4 +1,13 @@
 # IMP-16-U2 — Phase Z verification wiring design (design-only)
+> **⚠️ STATUS UPDATE (2026-05-20, INTEGRATION-AUDIT-02)** — IMP-16 is reclassified
+> as `documented:dormant` and IMP-07 as `documented:no-runtime`. The 3 "Open items
+> deferred until IMP-07 lands" below remain dormant until IMP-07 reverse-path
+> actually lands runtime (no current plan).
+>
+> Resolution evidence: see `INTEGRATION-AUDIT-02-REPORT.md` Sections 3, 4, and 7
+> (final decision: `NEEDS_DOC_SYNC_FOLLOWUP`).
+>
+> Do NOT treat this design contract as actionable in current Phase Z runtime.
 
 **Status**: design-only contract. **No runtime wiring lands in this issue.** All wiring is gated behind IMP-07 reverse-path activation (B-2 main). When IMP-07 lands, this doc becomes the binding contract for the Step 1 / 2 / 14 / 21 / 22 changes that consume the IMP-16-U1 surface in `src/phase_z2_verification_utils.py`.