diff --git a/framework/exceptions.py b/framework/exceptions.py
index 51c9951..2024f51 100644
--- a/framework/exceptions.py
+++ b/framework/exceptions.py
@@ -1,7 +1,6 @@
-# Copyright 2017 The Chromium Authors. All rights reserved.
-# Use of this source code is governed by a BSD-style
-# license that can be found in the LICENSE file or at
-# https://developers.google.com/open-source/licenses/bsd
+# Copyright 2017 The Chromium Authors
+# Use of this source code is governed by a BSD-style license that can be
+# found in the LICENSE file.
 
 """Exception classes used throughout monorail.
 """
@@ -182,3 +181,8 @@
 class OverAttachmentQuota(Error):
   """Project will exceed quota if the current operation is allowed."""
   pass
+
+
+class RedirectException(Error):
+  """Page need to Redirect to new url."""
+  pass