diff --git a/docs/changelog.rst b/docs/changelog.rst
index 7a9919e5b..a16c23873 100644
--- a/docs/changelog.rst
+++ b/docs/changelog.rst
@@ -17,6 +17,8 @@ Modifications to existing flavors:
 
 - Allowed invalid message to be overridden in ESIdentityCardNumberField
   (`gh-339 <https://github.com/django/django-localflavor/issues/339>`_).
+- Fix COFA validation for USStateField
+  (`gh-303 <https://github.com/django/django-localflavor/pull/303>`_)
 
 Other changes:
 
diff --git a/localflavor/us/us_states.py b/localflavor/us/us_states.py
index d1eaa8bc0..1f75471e8 100644
--- a/localflavor/us/us_states.py
+++ b/localflavor/us/us_states.py
@@ -242,6 +242,7 @@
     'fl': 'FL',
     'fla': 'FL',
     'florida': 'FL',
+    'fm': 'FM',
     'fsm': 'FM',
     'ga': 'GA',
     'georgia': 'GA',
@@ -279,6 +280,7 @@
     'massachussetts': 'MA',
     'md': 'MD',
     'me': 'ME',
+    'mh': 'MH',
     'mi': 'MI',
     'mich': 'MI',
     'michigan': 'MI',
@@ -337,6 +339,7 @@
     'pennsylvania': 'PA',
     'pr': 'PR',
     'puerto rico': 'PR',
+    'pw': 'PW',
     'republic of palau': 'PW',
     'republic of the marshall islands': 'MH',
     'rhode island': 'RI',