diff --git a/OWNERS b/OWNERS
index 22daf0d6b..4bf06b66c 100644
--- a/OWNERS
+++ b/OWNERS
@@ -1,19 +1,25 @@
-# WARNING: This file is autogenerated. DO NOT edit by hand!!!
-# To update this file please contact an existing owner and request
-# to be added to the owners-gen input data.
 approvers:
-- JoelSpeed
-- damdo
-- nrb
-- odvarkadaniel
+- cluster-api-approvers
 reviewers:
-- JoelSpeed
-- RadekManak
-- damdo
-- elmiko
-- nrb
-- odvarkadaniel
-- racheljpg
-- vincepri
+- cluster-api-reviewers
 component: Cloud Compute
-subcomponent: Cluster API
+subcomponent: Cluster API Providers
+
+# File-specific ownership patterns
+filters:
+  # Dependency files at any level - require different approval
+  "(^|.*/)go\\.(mod|sum|work|work.sum)$":
+    reviewers:
+      - sustaining-reviewers
+    approvers:
+      - sustaining-approvers
+      - cluster-api-approvers
+
+  # Vendor directory changes at any level
+  "(^|.*/)vendor/.*":
+    reviewers:
+      - sustaining-reviewers
+    approvers:
+      - sustaining-approvers
+      - cluster-api-approvers
+
diff --git a/OWNERS_ALIASES b/OWNERS_ALIASES
new file mode 100644
index 000000000..fdd208897
--- /dev/null
+++ b/OWNERS_ALIASES
@@ -0,0 +1,41 @@
+# OWNERS_ALIASES for openshift/cluster-capi-operator
+# See the OWNERS docs: https://git.k8s.io/community/contributors/guide/owners.md
+
+aliases:
+  # Default Cluster API maintainers
+  cluster-api-approvers:
+    - JoelSpeed
+    - RadekManak
+    - damdo
+    - mdbooth
+    - nrb
+    - racheljpg
+    - stephenfin
+    - theobarberbany
+  cluster-api-reviewers:
+    - RadekManak
+    - damdo
+    - mdbooth
+    - nrb
+    - racheljpg
+    - theobarberbany
+
+  # Allow sustaining engineering to approve dependency changes
+  sustaining-approvers:
+    - sghai
+    - shannon
+    - jkaurredhat
+    - san7ket
+    - germanparente
+    - prabhapa
+    - ppostler
+
+  sustaining-reviewers:
+    - sghai
+    - shannon
+    - jkaurredhat
+    - san7ket
+    - germanparente
+    - prabhapa
+    - ppostler
+