| US State | License Required? |
| Alabama Fertilizer Registration | Fertilizer Dealer Permit only |
| Alaska Fertilizer Registration | N/A |
| Arizona Fertilizer Registration | No |
| Arkansas Fertilizer Registration | No |
| California Fertilizer Registration | Yes |
| Colorado Fertilizer Registration | No |
| Connecticut Fertilizer Registration | No |
| Delaware Fertilizer Registration | No |
| Florida Fertilizer Registration | Yes |
| Georgia Fertilizer Registration | No |
| Hawaii Fertilizer Registration | N/A |
| Idaho Fertilizer Registration | No |
| Illinois Fertilizer Registration | Yes |
| Indiana Fertilizer Registration | No |
| Iowa Fertilizer Registration | Yes |
| Kansas Fertilizer Registration | No |
| Kentucky Fertilizer Registration | No, unless in KY |
| Louisiana Fertilizer Registration | No |
| Maine Fertilizer Registration | No |
| Maryland Fertilizer Registration | No |
| Massachusetts Fertilizer Registration | No |
| Michigan Fertilizer Registration | No |
| Minnesota Fertilizer Registration | Yes |
| Mississippi Fertilizer Registration | No |
| Missouri Fertilizer Registration | Yes. Need sample invoice |
| Montana Fertilizer Registration | Yes |
| Nebraska Fertilizer Registration | Yes |
| Nevada Fertilizer Registration | No |
| New Hampshire Fertilizer Registration | No |
| New Jersey Fertilizer Registration | No |
| New Mexico Fertilizer Registration | No |
| New York Fertilizer Registration | No |
| North Carolina Fertilizer Registration | Yes |
| North Dakota Fertilizer Registration | Yes |
| Ohio Fertilizer Registration | Yes |
| Oklahoma Fertilizer Registration | Yes |
| Oregon Fertilizer Registration | No |
| Pensylvania Fertilizer Registration | No |
| Rhode Island Fertilizer Registration | No |
| South Carolina Fertilizer Registration | Yes |
| South Dakota Fertilizer Registration | Yes |
| Tennessee Fertilizer Registration | Yes |
| Texas Fertilizer Registration | No |
| Utah Fertilizer Registration | No |
| Vermont Fertilizer Registration | No |
| Virginia Fertilizer Registration | Yes |
| Washington Fertilizer Registration | Yes |
| West Virginia Fertilizer Registration | No |
| Wisconsin Fertilizer Registration | No |
| Wyoming Fertilizer Registration | No |
