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.