From:   AACR2R, Appendix B; Post Office
 
B.14 Names of certain countries, states, provinces, territories, etc.
 
  AACR2 Postal
Alabama Ala. AL
Alaska   AK
Alberta Alta.  
Arizona Ariz. AZ
Arkansas Ark. AR
Australian Capital Territory A.C.T.  
British Columbia B.C.  
California         Calif. CA
Colorado Colo. CO
Connecticut Conn. CT
Delaware Del. DE
District of Columbia D.C. DC
Distrito Federal D.F.  
Florida Fla. FL
Georgia Ga. GA
Hawaii   HI
Idaho   ID
Illinois Ill. IL
Indiana Ind. IN
Iowa   IA
Kansas Kan. KS
Kentucky Ky. KY
Louisiana La. LA
Maine Me. ME
Manitoba Man.  
Maryland Md. MD
Massachusetts Mass. MA
Michigan Mich. MI
Minnesota Minn. MN
Mississippi Miss. MS
Missouri Mo. MO
Montana Mont. MT
Nebraska Neb. NE
Nevada Nev. NV
New Brunswick N.B.  
New Hampshire N.H. NH
New Jersey N.J. NJ
New Mexico N.M. NM
New South Wales N.S.W.  
New York N.Y. NY
New Zealand N.Z.  
Newfoundland Nfld.  
North Carolina N.C. NC
North Dakota N.D. ND
Northern Territory N.T.  
Northwest Territories N.W.T.  
Nova Scotia N.S.  
Ohio   OH
Oklahoma Okla. OK
Ontario Ont.  
Oregon Or. OR
Pennsylvania Pa. PA
Prince Edward Island P.E.I  
Puerto Rico P.R.  
Queensland Qld.  
Rhode Island R.I. RI
Russian Soviet Federated Socialist Republic R.S.F.S.R.  
Saskatchewan Sask.  
South Australia S. Aust.  
South Carolina S.C. SC
South Dakota S.D. SD
Tasmania Tas.  
Tennessee Tenn. TN
Territory of Hawaii T.H.  
Texas Tex. TX
Union of Soviet Socialist Republics U.S.S.R  
United Kingdom U.K.  
United States U.S.  
Utah   UT
Vermont Vt. VT
Victoria Vic.  
Virgin Islands V.I.  
Virginia Va. VA
Washington Wash. WA
West Virginia W.Va. WV
Western Australia W.A.  
Wisconsin Wis. WI
Wyoming Wyo. WY
Yukon Territory Yukon