diff --git a/registry/release-units/rein-aharness.yaml b/registry/release-units/rein-aharness.yaml
new file mode 100644
index 0000000..c34afba
--- /dev/null
+++ b/registry/release-units/rein-aharness.yaml
@@ -0,0 +1,39 @@
+# No owner classification file. Recorded internal/medium for this wave.
+kind: release-unit
+unit_id: rein-aharness
+owner: rein-aharness
+contract_version: 1.0.0
+data_classification: internal
+criticality: medium
+composition:
+  purpose: Covers the live rein-aharness workloads as one release unit.
+  member_repos:
+  - repo: rein-aharness
+    role: rollout owner
+    deployables:
+    - rein-aharness
+rollout_contract:
+  default_mode: owner-deploy
+smoke_contract:
+  required:
+  - workload-ready
+rollback_contract:
+  order:
+  - owner-rollback
+workloads:
+- kind: Deployment
+  namespace: rein-aharness
+  name: rein-aharness
+pins:
+  component:
+    name: ocm.railiance.dev/rein-aharness
+    version: live
+  resources: []
+  sources:
+  - name: rein-aharness
+    type: git
+    version: live
+    digest:
+      hashAlgorithm: SHA-1
+      normalisationAlgorithm: gitCommit/v1
+      value: 288149777272e5f9a24b365de8f5e43c6553300f