Permitting Under the Clean Air Act

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.

CAA Permits

Graphic showing a sample approved permit

CAA Permitting Tools & Related Resources - includes links to policy and guidance, databases, rule references and other resources
New Source Review Permitting
Title V Operating Permits
Outer Continental Shelf Permits
Tribal Permits
CAA Compliance Monitoring Applicability Determination Index (ADI)

CAA Permitting Around the Nation

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

Keys to Permitting Success

Plan. Communicate. Be flexible. Collaborate.

EPA has set a goal to make Agency permit decisions within six months by 2022. To that end, EPA’s Smart Sectors Program is discovering strategies that result in efficient environmental permitting processes. When Boeing decided to secure additional land for future growth in Charleston, SC, it received air and wetlands permits just a few months after submitting permit applications.