diff --git a/WORK-RECORDS.md b/WORK-RECORDS.md
index d741556..df9af8e 100644
--- a/WORK-RECORDS.md
+++ b/WORK-RECORDS.md
@@ -30,6 +30,7 @@
 | workplan | RMGR-WP-0016 | finished | — | workplans/RMGR-WP-0016-interface-canon-consumer-review.md |
 | workplan | RMGR-WP-0017 | finished | — | workplans/RMGR-WP-0017-projection-retry-convergence.md |
 | workplan | RMGR-WP-0018 | finished | — | workplans/RMGR-WP-0018-publisher-registry-image-refresh.md |
+| workplan | RMGR-WP-0019 | active | — | workplans/RMGR-WP-0019-historical-source-admission.md |
 | task | RMGR-WP-ADHOC-2026-09-06-T01 | done | — | workplans/ADHOC-2026-09-06.md |
 | task | RMGR-WP-ADHOC-2026-09-09-T01 | done | — | workplans/ADHOC-2026-09-09.md |
 | task | RMGR-WP-ADHOC-2026-09-11-T01 | done | — | workplans/ADHOC-2026-09-11.md |
@@ -129,6 +130,9 @@
 | task | RMGR-WP-0018-T01 | done | — | workplans/RMGR-WP-0018-publisher-registry-image-refresh.md |
 | task | RMGR-WP-0018-T02 | done | — | workplans/RMGR-WP-0018-publisher-registry-image-refresh.md |
 | task | RMGR-WP-0018-T03 | done | — | workplans/RMGR-WP-0018-publisher-registry-image-refresh.md |
+| task | RMGR-WP-0019-T01 | done | — | workplans/RMGR-WP-0019-historical-source-admission.md |
+| task | RMGR-WP-0019-T02 | wait | — | workplans/RMGR-WP-0019-historical-source-admission.md |
+| task | RMGR-WP-0019-T03 | wait | — | workplans/RMGR-WP-0019-historical-source-admission.md |
 | intake | RMGR-IN-0001 | closed | — | intakes/intakes.md |
 | intake | RMGR-IN-0002 | closed | — | intakes/intakes.md |
 | intake | RMGR-IN-0004 | closed | — | intakes/intakes.md |
diff --git a/workplans/RMGR-WP-0019-historical-source-admission.md b/workplans/RMGR-WP-0019-historical-source-admission.md
new file mode 100644
index 0000000..253f953
--- /dev/null
+++ b/workplans/RMGR-WP-0019-historical-source-admission.md
@@ -0,0 +1,73 @@
+---
+id: RMGR-WP-0019
+type: workplan
+title: "Admit exact historical source views after receiving preservation support"
+domain: infotech
+repo: repo-manager
+status: active
+owner: codex
+created: "2026-10-04"
+updated: "2026-10-04"
+flavor: implementation
+depends_on: []
+---
+
+## Goal
+
+Unblock normal authoritative registration of the exact closed Activity legacy
+source views and Custodian retired ADHOC source after receiving preserves their
+existing records. Preserve every legacy source byte, label and UUID; do not
+expand canonical syntax or the general grandfathering rules. CUST-WP-0077 owns
+cross-owner coordination with STATE-WP-0095.
+
+## Review exact historical receiving contract
+
+```task
+id: RMGR-WP-0019-T01
+status: done
+priority: high
+```
+
+Seven Activity sources yield four existing parents/64 closed bound tasks;
+three split views repeat the archived parent. One Custodian retired source keeps
+its existing parent/task IDs. Earlier /tmp/activity-core-bound-history-write.py
+is superseded and must not be applied: registrar bypass alone would admit an
+unsupported receiving projection. RMGR-WP-0014/0015 are finished and do not own
+this new implementation demand; this workplan is not residual.
+
+## Enable exact frozen registrar exceptions after receiving deployment
+
+```task
+id: RMGR-WP-0019-T02
+status: wait
+priority: high
+depends_on: [STATE-WP-0095-T03]
+blocked_on: "state-hub owner STATE-WP-0095-T03 must return deployment/version evidence for exact immutable historical receiving before applying registrar allowance"
+```
+
+Prepared code permits only source paths with reviewed full SHA256 digests in
+repo_manager/historical_sources.py. Strict conformance scans retain their legacy
+findings. Unknown/missing/altered source refuses before allocation. Source UUIDs
+are neither changed nor allocated for these histories. Receiving and registrar
+manifests must remain identical. Apply helper requires a deployment receipt.
+
+## Run normal owner sync and verify preserved identities
+
+```task
+id: RMGR-WP-0019-T03
+status: wait
+priority: high
+depends_on: [RMGR-WP-0019-T02]
+blocked_on: "repo-manager owner must run normal activity-core and the-custodian sync after the deployed receiving gate and return preserved historical UUID/task ownership receipts"
+```
+
+Use rmgr sync --path <owning-repo> --push. No deep-check repair or direct hub UUID
+patch substitutes for receiving. Historical unrelated stale projections are not
+retirement-authorized by this workplan. Feed receipts back to STATE-WP-0095-T04.
+
+## Offline evidence, 2026-10-04
+
+Prepared registrar suite: 38 focused cases passed (identifiers, registrar,
+Custodian legacy identity and exact frozen source cases). Read-only execute=False
+against both current owning repos accepted exact histories without source writes.
+Implementation is staged; deployment gate is unresolved.