Approved Air Quality Implementation Plans in Region 4
This site contains information about air quality regulations called State Implementation Plans (SIPs), Federal Implementation Plans (FIPs), and Tribal Implementation Plans (TIPs) approved by EPA's Region 4.
State Implementation Plans
Alabama
- EPA Approved Regulations in the Alabama SIP
- EPA Approved Alabama Source-Specific Requirements
- EPA Approved Nonregulatory Provisions and Quasi-Regulatory Measures in the Alabama SIP
Florida
- EPA Approved Regulations in the Florida SIP
- EPA Approved Florida Source-Specific Requirements
- EPA Approved Nonregulatory Provisions and Quasi-Regulatory Measures in the Florida SIP
Georgia
- EPA Approved Regulations in the Georgia SIP
- EPA Approved Georgia Source-Specific Requirements
- EPA Approved Nonregulatory Provisions and Quasi-Regulatory Measures in the Georgia SIP
Kentucky
- EPA Approved Regulations in the Kentucky SIP
- EPA Approved Regulations in the Jefferson County APCD LIP
- EPA Approved Kentucky Source-Specific Requirements
- EPA Approved Nonregulatory Provisions and Quasi-Regulatory Measures in the Kentucky SIP
Mississippi
- EPA Approved Regulations in the Mississippi SIP
- EPA Approved Nonregulatory Provisions and Quasi-Regulatory Measures in the Mississippi SIP
North Carolina
- EPA Approved Regulations in the North Carolina SIP
- EPA Approved Regulations in the Forsyth County, NC LIP
- EPA Approved Regulations in the Mecklenburg County, North Carolina LIP
- EPA Approved Regulations in the Western North Carolina LIP
- EPA Approved Nonregulatory Provisions and Quasi-Regulatory Measures in the North Carolina SIP
South Carolina
- EPA Approved Regulations in the South Carolina SIP
- EPA Approved South Carolina Source-Specific Requirements
- EPA Approved Nonregulatory Provisions and Quasi-Regulatory Measures in the South Carolina SIP
Tennessee
- EPA Approved Regulations in the Tennessee SIP
- EPA Approved Statutes and Regulations in the Chattanooga, TN LIP
- EPA Approved Statutes and Regulations in the Knox County, TN LIP
- EPA Approved Statutes and Regulations in the Memphis-Shelby County, TN APCB LIP
- EPA Approved Statutes and Regulations in the Nashville-Davidson County, TN LIP
- EPA Approved Tennessee Source-Specific Requirements
- EPA Approved Nonregulatory Provisions and Quasi-Regulatory Measures in the Tennessee SIP
Tribal Implementation Plans
- Region 4 currently has no approved TIPs.
- About TIPs
Federal Implementation Plans
- Region 4 currently has no approved FIPs.
- About FIPs
About this website: This website does not necessarily represent the current version of the SIPs, TIPs, or FIPs. The official SIPs, TIPs, and FIPs are contained in regulations promulgated in the Federal Register and codified in the U.S. Code of Federal Regulations (CFR). While we make every effort to maintain the accuracy of the files accessible here, inconsistencies may occur. Please contact us using the link below if you find any errors in these files.