
| New England: Connecticut, Maine, Massachusetts, New Hampshire, Rhode Island and Vermont | East Coast: Delaware, District of Columbia, Maryland, New Jersey, New York, and Pennsylvania | Great Lakes: Illinois, Indiana, Michigan, Ohio, and Wisconsin |
| Plains: Iowa, Kansas, Minnesota, Missouri, Nebraska, North Dakota, and South Dakota | Seaboard: Florida, Georgia, North Carolina, South Carolina, Virginia, and West Virginia | Southeast: Alabama, Arkansas, Kentucky, Louisiana,Mississippi, and Tennessee |
| Southwest: Arizona, New Mexico, Oklahoma, and Texas | Rocky Mountain: Colorado, Idaho, Montana, Utah, and Wyoming | West Coast: Alaska, California, Hawaii, Nevada, Oregon, and Washington |