diff --git a/app/models/org.rb b/app/models/org.rb
index bf00cdd..c2c90e2 100644
--- a/app/models/org.rb
+++ b/app/models/org.rb
@@ -78,8 +78,7 @@
   validates :name, presence: { message: PRESENCE_MESSAGE },
                    uniqueness: { message: UNIQUENESS_MESSAGE }
 
-  validates :abbreviation, presence: { message: PRESENCE_MESSAGE },
-                           uniqueness: { message: UNIQUENESS_MESSAGE }
+  validates :abbreviation, presence: { message: PRESENCE_MESSAGE }
 
   validates :is_other, inclusion: { in: BOOLEAN_VALUES,
                                     message: INCLUSION_MESSAGE }