圖片/資料來源：Government Information Xchange

AL - Alabama        AK - Alaska       AZ - Arizona      AR - Arkansas
CA - California     CO - Colorado     CT - Connecticut  DE - Delaware
FL - Florida        GA - Georgia      HI - Hawaii       ID - Idaho
IL - Illinois       IN - Indiana      IA - Iowa         KS - Kansas
KY - Kentucky       LA - Louisiana    ME - Maine        MD - Maryland
MA - Massachusetts  MI - Michigan     MN - Minnesota    MS - Mississippi     
MO - Missouri       MT - Montana      NE - Nebraska     NV - Nevada          
NH - New Hampshire  NJ - New Jersey   NM - New Mexico   NY - New York        
NC - North Carolina ND - North Dakota OH - Ohio         OK - Oklahoma        
OR - Oregon         PA - Pennsylvania RI - Rhode Island SC - South Carolina  
SD - South Dakota   TN - Tennessee    TX - Texas        UT - Utah            
VT - Vermont        VA - Virginia     WA - Washington   WV - West Virginia   
WI - Wisconsin      WY - Wyoming      DC - District of Columbia