December 18, 2014 - After considering state and tribal recommendations, reviewing the most recent certified fine particle air quality data, and emissions that contribute fine particle pollution, EPA has completed initial designations for the 2012 annual fine particle standard.
- Federal Register Notice Detailing Boundaries for Area Designations (PDF)(80 pp, 657 K, About PDF) - January 15, 2016
See other area designations for the 2012 Annual Fine Particle StandardYou may need a PDF reader to view some of the files on this page. See EPA’s About PDF page to learn more.
- Fact Sheet (PDF)(4 pp, 145 K)
- Map Showing Designated and Deferred Areas (PDF)(1 pg, 151 K)
- Responses to Significant Comments document (PDF)(68 pp, 623 K)