April 3, 2015
On March 10, 2015 the U.S. Environmental Protection Agency (EPA) proposed requirements for implementing the National Ambient Air Quality Standards (NAAQS) for fine particle pollution (PM2.5) in areas that are designated nonattainment for these standards. These requirements would apply to current and future fine particle pollution standards.
The proposed requirements would apply to state, local and tribal air agencies developing plans that outline how nonattainment areas will meet and maintain fine particle standards including the PM2.5 standards established in 2012.
EPA’s proposal presents options for how air agencies could meet state implementation plan (SIP) requirements under the Clean Air Act’s general and PM2.5 -specific nonattainment area planning provisions, such as:
- Attainment plan due dates, attainment dates and attainment date extension criteria;
- Emissions inventory and attainment demonstration requirements;
- Control strategy requirements, including Reasonably Available Control Measures (RACM) for Moderate nonattainment areas and Best Available Control Measures (BACM) for Serious nonattainment areas;
- Provisions for demonstrating reasonable further progress and for meeting periodic quantitative milestones; and,
- Criteria for reclassifying a Moderate nonattainment area to Serious.
As part of its action EPA is also proposing:
- Options for air agencies to demonstrate that one or more PM2.5 precursors – gases that react in the air to form fine particle pollution – do not contribute significantly to PM2.5 levels in a particular nonattainment area.
- Updated requirements for issuing permits for the construction of new major sources or for the modification of existing major sources of directly-emitted PM2.5 and PM2.5 precursors in PM2.5 nonattainment areas.
- Options for revoking the 1997 primary annual PM2.5 standard of 15 micrograms per cubic meter (µg/m3 ) because the revised 2012 primary annual standard of 12 µg/m3 is now more protective of public health.
What this means to you
EPA is proposing new requirements for state implementation plans (SIPs) to implement National Ambient Air Quality Standards (NAAQS) for fine particle pollution (PM2.5) in areas that are presently designated nonattainment for these standards.
MIRATECH can help
Contact MIRATECH to learn more about PM2.5 emission solutions including diesel particulate filters.