States may submit their air quality State Implementation Plans (SIPs) and revisions electronically through EPA's Central Data Exchange website. eSIP is EPA's preferred method for air agencies to make SIP submissions. 

Submit your SIP online: Central Data Exchange (eSIP)

Questions? For help with eSIP, contact one of our regional SIP coordinators for your area. 

Additional information and guidance

• 2/10/15 Federal Register: Revisions to the Clean Air Act Section 110 Submission Requirements for State Implementation Plans and Notice of Availability of an Option for Electronic Reporting, Final Rule (PDF)(6 pp, 241 K, About PDF)
  • Fact Sheet on Submission Requirements and Electronic Reporting
• Registration Training Presentations, for Preparer and Certifier