On March 10, 2015, the U.S. Environmental Protection Agency (EPA) signed a proposed rule implementing the 2012 fine particulate matter (PM2.5) national ambient air quality standards (NAAQS). The proposed rule addresses how states containing nonattainment areas can satisfy the state implementation plan requirements, which include, among other things, attainment plan submission deadlines and attainment deadlines, emissions inventories, attainment demonstrations, provisions for demonstrating reasonable further progress, quantitative milestones, contingency measures, and nonattainment New Source Review permitting programs. The proposed rule would also revoke the 1997 primary annual standard, which EPA revised in 2012.
Although EPA recently deferred making final area designations for the 2012 PM2.5 primary NAAQS in Florida based on data quality concerns, no nonattainment areas are expected. Comments on the proposed rule are due 60 days after publication in the Federal Register, which is expected in the next several weeks.
For additional information, contact Andrew Holway.