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*
- Arizona*
- Arkansas
- Colorado
- Connecticut
- Delaware
- Florida
- Georgia
- Guam
- Hawaii*
- Idaho
- Illinois*
- Indiana
- Iowa
- Kansas*
- Kentucky
- Louisiana
- Maine
- Maryland
- Massachusetts
- Michigan
- Mississippi*
- Missouri*
- Montana
- Nebraska
- Nevada
- New Hampshire
- New Jersey
- New Mexico
- New York
- North Carolina
- North Dakota*
- Ohio
- Oklahoma*
- Pennsylvania
- Rhode Island
- South Carolina
- South Dakota*
- Tennessee*
- Texas
- U.S. Virgin Islands
- Utah
- Vermont
- Virginia
- Washington, D.C.
- West Virginia
- Wisconsin
- Wyoming*