diff --git a/cluster/addons/cluster-monitoring/OWNERS b/cluster/addons/cluster-monitoring/OWNERS
index 1e5be5fb84..570bdb282f 100644
--- a/cluster/addons/cluster-monitoring/OWNERS
+++ b/cluster/addons/cluster-monitoring/OWNERS
@@ -1,3 +1,6 @@
-assignees:
-  - DirectXMan12
-  - piosz
+approvers:
+- DirectXMan12
+- piosz
+reviewers:
+- DirectXMan12
+- piosz
diff --git a/cluster/addons/dns-horizontal-autoscaler/OWNERS b/cluster/addons/dns-horizontal-autoscaler/OWNERS
index cbf6388351..b9e1c0e506 100644
--- a/cluster/addons/dns-horizontal-autoscaler/OWNERS
+++ b/cluster/addons/dns-horizontal-autoscaler/OWNERS
@@ -1,3 +1,6 @@
-assignees:
+approvers:
+- bowei
+- mrhohn
+reviewers:
 - bowei
 - mrhohn
diff --git a/cluster/addons/dns/OWNERS b/cluster/addons/dns/OWNERS
index cbf6388351..b9e1c0e506 100644
--- a/cluster/addons/dns/OWNERS
+++ b/cluster/addons/dns/OWNERS
@@ -1,3 +1,6 @@
-assignees:
+approvers:
+- bowei
+- mrhohn
+reviewers:
 - bowei
 - mrhohn
diff --git a/cluster/addons/fluentd-elasticsearch/OWNERS b/cluster/addons/fluentd-elasticsearch/OWNERS
index 005315d55f..b2e859ee70 100644
--- a/cluster/addons/fluentd-elasticsearch/OWNERS
+++ b/cluster/addons/fluentd-elasticsearch/OWNERS
@@ -1,3 +1,6 @@
-assignees:
-  - Crassirostris
-  - piosz
+approvers:
+- Crassirostris
+- piosz
+reviewers:
+- Crassirostris
+- piosz
diff --git a/cluster/addons/fluentd-gcp/OWNERS b/cluster/addons/fluentd-gcp/OWNERS
index 005315d55f..b2e859ee70 100644
--- a/cluster/addons/fluentd-gcp/OWNERS
+++ b/cluster/addons/fluentd-gcp/OWNERS
@@ -1,3 +1,6 @@
-assignees:
-  - Crassirostris
-  - piosz
+approvers:
+- Crassirostris
+- piosz
+reviewers:
+- Crassirostris
+- piosz
diff --git a/cluster/gce/container-linux/OWNERS b/cluster/gce/container-linux/OWNERS
index 087c1e4ead..6b3b69dd18 100644
--- a/cluster/gce/container-linux/OWNERS
+++ b/cluster/gce/container-linux/OWNERS
@@ -1,4 +1,8 @@
-assignees:
-  - euank
-  - yifan-gu
-  - ethernetdan
+approvers:
+- euank
+- yifan-gu
+- ethernetdan
+reviewers:
+- euank
+- yifan-gu
+- ethernetdan
diff --git a/cluster/saltbase/salt/fluentd-gcp/OWNERS b/cluster/saltbase/salt/fluentd-gcp/OWNERS
index 005315d55f..b2e859ee70 100644
--- a/cluster/saltbase/salt/fluentd-gcp/OWNERS
+++ b/cluster/saltbase/salt/fluentd-gcp/OWNERS
@@ -1,3 +1,6 @@
-assignees:
-  - Crassirostris
-  - piosz
+approvers:
+- Crassirostris
+- piosz
+reviewers:
+- Crassirostris
+- piosz
diff --git a/cmd/libs/go2idl/OWNERS b/cmd/libs/go2idl/OWNERS
index 9ec923fdbf..b44539f28e 100644
--- a/cmd/libs/go2idl/OWNERS
+++ b/cmd/libs/go2idl/OWNERS
@@ -1,3 +1,6 @@
-assignees:
-  - lavalamp
-  - wojtek-t
+approvers:
+- lavalamp
+- wojtek-t
+reviewers:
+- lavalamp
+- wojtek-t
diff --git a/cmd/libs/go2idl/client-gen/OWNERS b/cmd/libs/go2idl/client-gen/OWNERS
index 4cf5f97060..0c408a1aa9 100644
--- a/cmd/libs/go2idl/client-gen/OWNERS
+++ b/cmd/libs/go2idl/client-gen/OWNERS
@@ -1,4 +1,8 @@
-assignees:
-  - lavalamp
-  - wojtek-t
-  - caesarxuchao
+approvers:
+- lavalamp
+- wojtek-t
+- caesarxuchao
+reviewers:
+- lavalamp
+- wojtek-t
+- caesarxuchao
diff --git a/cmd/libs/go2idl/go-to-protobuf/OWNERS b/cmd/libs/go2idl/go-to-protobuf/OWNERS
index de40b15f7f..05d4b2a657 100644
--- a/cmd/libs/go2idl/go-to-protobuf/OWNERS
+++ b/cmd/libs/go2idl/go-to-protobuf/OWNERS
@@ -1,2 +1,4 @@
-assignees:
-  - smarterclayton
+approvers:
+- smarterclayton
+reviewers:
+- smarterclayton
diff --git a/federation/cmd/federation-apiserver/OWNERS b/federation/cmd/federation-apiserver/OWNERS
index c5bdda2d1a..fe144587cd 100644
--- a/federation/cmd/federation-apiserver/OWNERS
+++ b/federation/cmd/federation-apiserver/OWNERS
@@ -1,5 +1,10 @@
-assignees:
-  - lavalamp
-  - smarterclayton
-  - nikhiljindal
-  - krousey
+approvers:
+- lavalamp
+- smarterclayton
+- nikhiljindal
+- krousey
+reviewers:
+- lavalamp
+- smarterclayton
+- nikhiljindal
+- krousey
diff --git a/federation/cmd/federation-controller-manager/OWNERS b/federation/cmd/federation-controller-manager/OWNERS
index c6b4c5c4f6..690aeaaba2 100644
--- a/federation/cmd/federation-controller-manager/OWNERS
+++ b/federation/cmd/federation-controller-manager/OWNERS
@@ -1,4 +1,8 @@
-assignees:
-  - quinton-hoole
-  - nikhiljindal
-  - madhusundancs
+approvers:
+- quinton-hoole
+- nikhiljindal
+- madhusundancs
+reviewers:
+- quinton-hoole
+- nikhiljindal
+- madhusundancs
diff --git a/federation/pkg/federation-controller/OWNERS b/federation/pkg/federation-controller/OWNERS
index 144e50dfcc..571c01c052 100644
--- a/federation/pkg/federation-controller/OWNERS
+++ b/federation/pkg/federation-controller/OWNERS
@@ -1,4 +1,8 @@
-assignees:
-  - quinton-hoole
-  - nikhiljindal
-  - madhusudancs
+approvers:
+- quinton-hoole
+- nikhiljindal
+- madhusudancs
+reviewers:
+- quinton-hoole
+- nikhiljindal
+- madhusudancs
diff --git a/pkg/util/goroutinemap/OWNERS b/pkg/util/goroutinemap/OWNERS
index 73ab6a21c9..9d44e9cec0 100644
--- a/pkg/util/goroutinemap/OWNERS
+++ b/pkg/util/goroutinemap/OWNERS
@@ -1,2 +1,4 @@
-assignees:
-  - saad-ali
+approvers:
+- saad-ali
+reviewers:
+- saad-ali
diff --git a/plugin/cmd/kube-scheduler/OWNERS b/plugin/cmd/kube-scheduler/OWNERS
index 44bd78a216..6a4023f8e9 100644
--- a/plugin/cmd/kube-scheduler/OWNERS
+++ b/plugin/cmd/kube-scheduler/OWNERS
@@ -1,2 +1,4 @@
-assignees:
-  - davidopp
+approvers:
+- davidopp
+reviewers:
+- davidopp
diff --git a/plugin/pkg/admission/OWNERS b/plugin/pkg/admission/OWNERS
index 6b9dd4b145..5c88b018c9 100644
--- a/plugin/pkg/admission/OWNERS
+++ b/plugin/pkg/admission/OWNERS
@@ -1,2 +1,4 @@
-assignees:
-  - derekwaynecarr
+approvers:
+- derekwaynecarr
+reviewers:
+- derekwaynecarr
diff --git a/plugin/pkg/auth/OWNERS b/plugin/pkg/auth/OWNERS
index 766c481bd7..d2679c5760 100644
--- a/plugin/pkg/auth/OWNERS
+++ b/plugin/pkg/auth/OWNERS
@@ -1,3 +1,6 @@
-assignees:
-  - erictune
-  - liggitt
+approvers:
+- erictune
+- liggitt
+reviewers:
+- erictune
+- liggitt
diff --git a/plugin/pkg/auth/authenticator/token/oidc/OWNERS b/plugin/pkg/auth/authenticator/token/oidc/OWNERS
index 2f80bc7e10..d2210cb89a 100644
--- a/plugin/pkg/auth/authenticator/token/oidc/OWNERS
+++ b/plugin/pkg/auth/authenticator/token/oidc/OWNERS
@@ -1,2 +1,4 @@
-assignees:
-  - ericchiang
+approvers:
+- ericchiang
+reviewers:
+- ericchiang
diff --git a/plugin/pkg/scheduler/OWNERS b/plugin/pkg/scheduler/OWNERS
index 7ca55a811f..2372f575dd 100644
--- a/plugin/pkg/scheduler/OWNERS
+++ b/plugin/pkg/scheduler/OWNERS
@@ -1,9 +1,8 @@
-assignees:
-  - davidopp
-  - timothysc
-  - wojtek-t
+approvers:
+- davidopp
+- timothysc
+- wojtek-t
 reviewers:
-  - davidopp
-  - timothysc
-  - wojtek-t
-  - jayunit100
+- davidopp
+- timothysc
+- wojtek-t
diff --git a/staging/src/k8s.io/apimachinery/pkg/conversion/OWNERS b/staging/src/k8s.io/apimachinery/pkg/conversion/OWNERS
index a046efc0c2..c25e7faf2d 100644
--- a/staging/src/k8s.io/apimachinery/pkg/conversion/OWNERS
+++ b/staging/src/k8s.io/apimachinery/pkg/conversion/OWNERS
@@ -1,5 +1,10 @@
-assignees:
-  - derekwaynecarr
-  - lavalamp
-  - smarterclayton
-  - wojtek-t
+approvers:
+- derekwaynecarr
+- lavalamp
+- smarterclayton
+- wojtek-t
+reviewers:
+- derekwaynecarr
+- lavalamp
+- smarterclayton
+- wojtek-t
diff --git a/staging/src/k8s.io/client-go/_vendor/k8s.io/apimachinery/pkg/conversion/OWNERS b/staging/src/k8s.io/client-go/_vendor/k8s.io/apimachinery/pkg/conversion/OWNERS
index a046efc0c2..c25e7faf2d 100644
--- a/staging/src/k8s.io/client-go/_vendor/k8s.io/apimachinery/pkg/conversion/OWNERS
+++ b/staging/src/k8s.io/client-go/_vendor/k8s.io/apimachinery/pkg/conversion/OWNERS
@@ -1,5 +1,10 @@
-assignees:
-  - derekwaynecarr
-  - lavalamp
-  - smarterclayton
-  - wojtek-t
+approvers:
+- derekwaynecarr
+- lavalamp
+- smarterclayton
+- wojtek-t
+reviewers:
+- derekwaynecarr
+- lavalamp
+- smarterclayton
+- wojtek-t
diff --git a/staging/src/k8s.io/client-go/plugin/pkg/client/auth/gcp/OWNERS b/staging/src/k8s.io/client-go/plugin/pkg/client/auth/gcp/OWNERS
index d75421c5ef..6cf8db8ac9 100644
--- a/staging/src/k8s.io/client-go/plugin/pkg/client/auth/gcp/OWNERS
+++ b/staging/src/k8s.io/client-go/plugin/pkg/client/auth/gcp/OWNERS
@@ -1,3 +1,6 @@
-assignees:
-  - cjcullen
-  - jlowdermilk
+approvers:
+- cjcullen
+- jlowdermilk
+reviewers:
+- cjcullen
+- jlowdermilk
diff --git a/staging/src/k8s.io/client-go/plugin/pkg/client/auth/oidc/OWNERS b/staging/src/k8s.io/client-go/plugin/pkg/client/auth/oidc/OWNERS
index 2f80bc7e10..d2210cb89a 100644
--- a/staging/src/k8s.io/client-go/plugin/pkg/client/auth/oidc/OWNERS
+++ b/staging/src/k8s.io/client-go/plugin/pkg/client/auth/oidc/OWNERS
@@ -1,2 +1,4 @@
-assignees:
-  - ericchiang
+approvers:
+- ericchiang
+reviewers:
+- ericchiang