REGIONS
ATLANTIC: Delaware (DE), District of Columbia (DC), Maryland (MD), Pennsylvania (PA), Virginia (VA), and West Virginia (WV)
CENTRAL: Illinois (IL), Iowa (IA), Kansas (KS), Minnesota (MN), Missouri (MO), Wisconsin (WI), and the Canadian Province of Manitoba (MB)
EASTERN: New Jersey (NJ), New York (NY), and the Canadian Province of Ontario (ON)
MIDWEST: Indiana (IN), Kentucky (KY), Michigan (MI), and Ohio (OH)
NORTHEAST: Connecticut (CT), Maine (ME), Massachusetts (MA), New Hampshire (NH), Rhode Island (RI), Vermont (VT), and the Canadian Provinces of New Brunswick (NB), New Foundland (NF), Nova Scotia (NS), Prince Edward Island (PI), and Quebec (PQ)
NORTHWEST: Alaska (AK), Idaho (ID), Oregon (OR), Washington (WA), and the Canadian Provinces of Alberta (AB), British Columbia (BC), Northwest Territories (NT), and Yukon (YT)
PACIFIC: Arizona (AZ), California (CA), Hawaii (HI), and Nevada (NV)
ROCKY MOUNTAIN-PLAINS: Colorado (CO), Montana (MT), Nebraska (NE), North Dakota (ND), South Dakota (SD), Wyoming (WY), Utah (UT), and the Canadian Province of Saskatchewan (SK)
SOUTHEAST: Alabama (AL), Georgia (GA), Florida (FL), Mississippi (MS), North Carolina (NC), South Carolina (SC), and Tennessee (TN)
SOUTHWEST: Arkansas (AR), Louisiana (LA), New Mexico (NM), Oklahoma (OK), and Texas (TX)