Chapter 335-3-17 - Conformity of Federal Actions to State Implementation Plans
EPA Region 4 is the agency responsible for the state implementation plan (SIP) development (including mobile sources related issues), designation activities for the national ambient air quality standards (NAAQS), transportation conformity activity, regional haze and general air quality planning for the States of Alabama, Florida, Georgia, Kentucky, Mississippi, North Carolina, South Carolina, and Tennessee.
Updated as of: March 12, 2026
EPA Contact: EPA Region 4: Jia Shi (404)562-9448
Links of Interest:
- EPA Approved Statutes and Regulations in the Alabama SIP
- Approved Air Quality Implementation Plans in Region 4
- About SIPs
- Air Quality Implementation Plans
- Criteria Air Pollutants (NAAQS)
- Nonattainment Areas (Green Book)
Alabama State Implementation Plan (SIP) Contact in the Southeastern US - EPA Region 4: Jia Shi (404)562-9448