Classification GS is subdivided by state. It may prove useful to create HS and subdivisions at some future point. At present, only US states have classifications. It is fully expected that Canadian provinces will be added once sufficient volumes are cataloged to warrant it. New codes will use the two-letter abbreviations assigned by the USPS or Canada Post. State codes in use include:
*AL = Alabama*CA = California*CN = Connecticut*DE = Delaware*FL = Florida*GA = Georgia (state)*IL = Illinois*LA = Louisiana*MA = Massachusetts*MD = Maryland*ME = Maine*MI = Michigan*MN = Minnisota*MO = Missouri*NC = North Carolina*ND = North Dakota*NH = New Hampshire*NJ = New Jersey*NM = New Mexico*NY = New York*OH = Ohio*PA = Pennsylvania*RI = Rhode Island*SC = South Carolina*TN = Tennessee*VA = Virgina*VT = Vermont*WI = Wisconsin*WV = West Virginia Colonies and Territories are filed with the relevant state. Where borders changed or states succeeded (as WV from VA), items are filed according to the name of the state at the time in question.
===Peoples Classifications===