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The majority of the United States may use REScheck to show compliance. However, some states allow REScheck use by county or jurisdiction rather than statewide (denoted by an asterisk [*]).
| Alabama* | Maine | Oklahoma* |
| Arizona* | Maryland | Pennsylvania |
| Arkansas | Massachusetts | Rhode Island |
| Colorado | Michigan | South Carolina |
| Connecticut | Minnesota | South Dakota* |
| Delaware | Mississippi* | Tennessee |
| Florida | Missouri* | Texas |
| Georgia | Montana | U.S. Virgin Islands |
| Guam | Nebraska | Utah |
| Hawaii* | Nevada | Vermont |
| Idaho | New Hampshire | Virginia |
| Illinois* | New Jersey | Washington |
| Indiana | New Mexico | Washington, D.C. |
| Iowa | New York | West Virginia |
| Kansas* | North Carolina | Wisconsin |
| Kentucky | North Dakota* | Wyoming* |
| Louisiana | Ohio |