diff --git a/.github/pull_request_assignment.yml b/.github/pull_request_assignment.yml
index cae1b0e3f21d..054e38b955f2 100644
--- a/.github/pull_request_assignment.yml
+++ b/.github/pull_request_assignment.yml
@@ -22,6 +22,142 @@
       - jhendrixMSFT
       - tjprescott
       
+
+- rule:
+    paths:
+      - "specification/network/**"
+    reviewers:
+      - kairu-ms
+      - lirenhe
+
+- rule:
+    paths:
+      - "specification/@(applicationinsights|operationalinsights)/**"
+    reviewers:
+      - kairu-ms
+
+- rule:
+    paths: "specification/@(resources|powerplatform|appplatform)/**"
+    reviewers:
+      - raych1
+      
+- rule:
+    paths: "specification/@(security|edgeorder|synapse)/**"
+    reviewers:
+      - ruowan
+      
+- rule:
+    paths: "specification/sql/**"
+    reviewers:
+      - akning-ms
+      
+- rule:
+    paths: "specification/signalr/**"
+    reviewers:
+      - leni-msft
+      
+- rule:
+    paths: "specification/eventhub/**"
+    reviewers:
+      - ruowan
+- rule:
+    paths: "specification/compute/**"
+    reviewers:
+      - ArcturusZhang
+      - yungezz
+
+- rule:
+    paths:
+      - "specification/machinelearningservices/**"
+    reviewers:
+      - ArcturusZhang
+
+- rule:
+    paths:
+      - "specification/azureactivedirectory/**"
+    reviewers:
+      - njuCZ
+
+- rule:
+    paths:
+      - "specification/authorization/**"
+    reviewers:
+      - qianwens
+
+- rule:
+    paths:
+      - "specification/datafactory/**"
+    reviewers:
+      - qianwens
+
+- rule:
+    paths:
+      - "specification/monitor/**"
+    reviewers:
+      - weidongxu-microsoft
+      - kairu-ms
+
+- rule:
+    paths:
+      - "specification/storage/**"
+    reviewers:
+      - Juliehzl
+
+
+- rule:	
+    paths: "specification/mediaservices/**"	
+    reviewers:	
+      - allenjzhang
+- rule:
+    paths:
+      - "specification/containerregistry/**"
+    reviewers:
+      - fengzhou-msft
+
+- rule:
+    paths:
+      - "specification/@(containerservice|containerinstance)/**"
+    reviewers:
+      - PhoenixHe-msft
+
+- rule:
+    paths:
+      - "specification/mixedreality/**"
+      - "specification/hdinsight/**"
+    reviewers:
+      - leni-msft
+
+- rule:
+    paths:
+      - "specification/portal/**"
+    reviewers:
+      - PhoenixHe-msft
+
+- rule:
+    paths:
+      - "specification/web/**"
+    reviewers:
+      - weidongxu-microsoft
+      
+- rule:
+    paths:
+      - "specification/testbase/**"
+    reviewers:
+      - PhoenixHe-msft
+      
+- rule:
+    paths:
+      - "specification/servicelinker/**"
+    reviewers:
+      - PhoenixHe-msft
+
+- rule:
+    paths: 
+      - "specification/azurestack/**"
+      - "specification/automation/**"
+    reviewers:
+      - xiaoxuqi-ms
+
 - rule:
     paths:
       - "documentation/**"
@@ -48,5 +184,19 @@
     paths:
       - "**"
     reviewers:
-      - allenjzhang
-      - markcowl
+      - erich-wang
+      - PhoenixHe-msft
+      - lirenhe
+      - weidongxu-microsoft
+      - ArcturusZhang
+      - xccc-msft
+      - raych1
+      - ChenTanyi
+      - njuCZ
+      - akning-ms
+      - leni-msft
+      - qianwens
+      - ruowan
+      - jianyexi
+      - zhenglaizhang
+      - chunyu3