Basic Information about Air Quality FIPs

What is a FIP?

A Federal Implementation Plan (FIP) is an air quality plan developed by EPA under certain circumstances to help states or tribes attain and/or maintain the National Ambient Air Quality Standards (NAAQS) for criteria air pollutants and fulfill other requirements of the Clean Air Act. 

EPA is required to develop a FIP if a state fails to submit a complete implementation plan, or if EPA disapproves a plan as not meeting Clean Air Act requirements. EPA may also develop a FIP for tribal lands if a tribe elects not to develop their own implementation plan, as appropriate. 

See: Basic information about State Implementation Plans (SIPs) and Tribal Implementation Plans (TIPs)

Current FIPs around the Nation

EPA has developed and implemented the following FIPs:

• Arkansas (Subpart E)
• Fort Berthold Indian Reservation Oil and Natural Gas Well Production Facilities (ND)
• Hawaii Regional Haze
• Louisiana (Subpart T)
• Montana Regional Haze
• Navajo Generating Station (AZ)
• New Mexico (Subpart GG)
• North Dakota Regional Haze
• Oklahoma (Subpart LL)
• Texas (Subpart SS)
• Wyoming Regional Haze
• See also: Approved SIPs