Memos and Notices regarding Interstate Air Pollution Transport
- Findings of Failure to Submit a Clean Air Act Section 110 State Implementation Plan for Interstate Transport for the 2015 Ozone National Ambient Air Quality Standards (NAAQS) (signed November 2019)
- Memo and Supplemental Information Regarding Interstate Transport SIPs for the 2015 Ozone NAAQS (signed March 2018)
- Memo and Supplemental Information on Interstate Transport SIPs for the 2008 Ozone NAAQS (signed October 2017)
- 2015 Ozone NAAQS (Notice of Data Availability - Preliminary Interstate Ozone Transport Modeling Data for the 2015 Ozone NAAQS) (signed December 2016)