- Beltsville Area
Beltsville Agricultural Research Center, Riverdale
- Mid South Area
Alabama, Kentucky, Mississippi, Lousiana, Tennessee
- Midwest Area
Iowa, Illinois, Indiana, Michigan, Minnesota, Missouri, Ohio, Wisconsin
- North Atlantic Area
Connecticut, Delaware, Maine, Maryland, Massachusetts, New Hampshire, New Jersey, New York, Pennsylvania, Rhode Island, Vermont, West Virginia
- Northern Plains Area
Colorado, Kansas, Montana, North Dakota, Nebraska, South Dakota, Utah, Wyoming
- Pacific West Area
Arizona, California, Hawaii, Idaho, Nevada, Oregan, Washington
- South Atlantic Area
Florida, Georgia, North Carolina, Puerto Rico, South Carolina, Virginia, Virgin Islands
- Southern Plains Area
Arkansas, New Mexico, Oklahoma, Texas, Panama
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