diff --git a/HACKING.rst b/HACKING.rst
index 5250e98..217ddc7 100644
--- a/HACKING.rst
+++ b/HACKING.rst
@@ -12,6 +12,7 @@ Neutron Specific Commandments
 - [N320] Validate that LOG messages, except debug ones, have translations
 - [N321] Validate that jsonutils module is used instead of json
 - [N322] Detect common errors with assert_called_once_with
+- [N323] Enforce namespace-less imports for oslo libraries
 
 Creating Unit Tests
 -------------------