Copyright (C) 2006-2007 Code Synthesis Tools CC Redistribution and use with or without modification are permitted under the terms of the new BSD license. See the accompanying LICENSE file. The following five types are defined for representing U.S. states and territories: USStateTerritoryCode 50 states + 9 territories USStateCode 50 states + District of Columbia USTerritoryCode 9 territories - District of Columbia USContinentalStateCode USStateCode - Hawaii USContiguousStateCode USContinentalStateCode - Alaska See also: http://en.wikipedia.org/wiki/US_States http://en.wikipedia.org/wiki/Continental_United_States http://www.usps.com/ncsc/lookups/usps_abbreviations.html Two-letter code for one of the 59 U.S. states/territories. Two-letter code for one of the 50 U.S. states and District of Columbia. Two-letter code for one of the 9 U.S. territories sans District of Columbia. Two-letter code for one of the 50 U.S. states and District of Columbia sans Hawaii. Two-letter code for one of the 50 U.S. states and District of Columbia sans Hawaii and Alaska.