This maps marks the mail processing facilities identified for consolidation as part of the revised Network Rationalization plan announced on May 17, 2012.
Red = facilities identified for consolidation during the summer of 2012
Yellow = facilities planned for consolidation in 2013
Blue = facilities for which consolidation was postponed until 2014
A list of the facilities is here [1].
You can see the map and list on Google Fusions [2], where it's possible to sort, analyze, and chart the list.