EPA Finalizes Initial Area Designations for the 2012 National Air Quality Standard for Fine Particles - Dec 2014
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 KB) - January 15, 2016
See other area designations for the 2012 Annual Fine Particle Standard