Permitting Under the Clean Air Act

  • Clean Air Act Permitting

    The Clean Air Act (CAA) establishes a number of permitting programs designed to carry out the goals of the Act. Some of these programs are directly implemented by EPA through its Regional Offices but most are carried out by states, local agencies and approved tribes.

Air Permitting Around the Nation

Find information about CAA permitting authorities, focus topics, and current actions in your area.

Map of the US, split into EPA regionsRegion 1: Connecticut, Maine, Massachusetts, New Hampshire, Rhode Island, Vermont Region 2: New Jersey, New York, Puerto Rico, US Virgin Islands Region 3: Delaware, District of Columbia, Maryland, Pennsylvania, Virginia, West Virginia Region 4: Alabama, Florida, Georgia, Kentucky, Mississippi, North Carolina, South Carolina, Tennessee Region 5: Illinois, Indiana, Michigan, Minnesota, Ohio, Wisconsin Region 6: Arkansas, Louisiana, New Mexico, Oklahoma, Texas Region 7: Iowa, Kansas, Missouri, NebraskaRegion 8: Colorado, Montana, North Dakota, South Dakota, Utah, Wyoming Region 9: Arizona, California, Hawaii, Nevada, Pacific Islands Region 10: Alaska, Idaho, Oregon, Washington

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Last updated on May 13, 2025