diff --git a/project.config b/project.config
index 28a580a..08b5dd8 100644
--- a/project.config
+++ b/project.config
@@ -13,3 +13,9 @@
 	pushTag = group Project Owners
 [access "refs/*"]
 	owner = group google/gerritcodereview-maintainers@googlegroups.com
+[receive]
+	requireContributorAgreement = true
+	requireSignedOffBy = false
+	requireChangeId = true
+[submit]
+	mergeContent = true