Add group of existing CLA signers
diff --git a/groups b/groups
index 4e84104..e5c5c69 100644
--- a/groups
+++ b/groups
@@ -3,6 +3,7 @@
 05717425690d91333dd0b89591e6afdce8de2084	nobody
 420ead950461b5f205dd05e8a48e54ec518170b0	admins
 4f2daf1bf6c2e656cd8cb4f4416e65f3e5f05a76	gophers
+9bbaccd8cc87ef7211b1088bcc91a879a932237f	existing-cla
 a68e77fe594e959daaacc2fb670298964f78acfa	approvers
 global:Anonymous-Users                  	Anonymous Users
 global:Project-Owners                   	Project Owners
diff --git a/project.config b/project.config
index d058cdc..5b2bf0a 100644
--- a/project.config
+++ b/project.config
@@ -7,9 +7,11 @@
 	createNewChangeForAllNotInTarget = false
 [accounts]
 	sameGroupVisibility = deny group google/google-union:signcla
+	sameGroupVisibility = deny group existing-cla
 [contributor-agreement "Google CLA"]
 	description = Google Contributor License Agreement
 	agreementUrl = static/cla.html
+	accepted = group existing-cla
 	accepted = group google/google-union:signcla
 	accepted = group gophers
 	accepted = group ldap/employees