EPA finalized amendments to the regulations that govern the processes and timelines for state and federal plans to implement emission guidelines under CAA new source performance standards for existing sources. 

SIP Approval: New Jersey (regional haze).

SIP Approval: Kentucky (update to materials incorporated by reference).

EPA proposed amendments to the NESHAP for Rubber Tire Manufacturing, specifically the rubber processing subcategory.

SIP Approval: New York (reasonably available control technology requirements for serious classification of the 2008 and moderate classification of the 2015 eight-hour ozone NAAQS; ozone transport region requirements for the 2015 eight-hour ozone NAAQS; requirements for ozone nonattainment new source review program, nonattainment emission inventory, and clean fuels for fleets; and reasonable further progress plans and motor vehicle emissions budgets for both moderate and serious classifications of the 2008 eight-hour ozone NAAQS).

EPA proposed to approve Alabama’s CAA §111(d) plan that establishes emission limits for existing municipal solid waste (MSW) landfills and provides for the implementation and enforcement of EPA’s emissions guidelines and compliance times for MSW landfills. 

SIP Approval: Colorado (approval of enhanced monitoring element for the 2008 8-hour ozone NAAQS and disapproval of contingency measure element in the Denver Metro/North Front Range nonattainment area). 

SIP Approval: Florida (revisions to multiple stationary source rules). 

SIP Approval: California (revisions concerning vehicle miles traveled offset demonstrations for the Los Angeles-South Coast Air Basin, Riverside County, Los Angeles-San Bernadino Counties, and San Joaquin Valley nonattainment areas for the 2015 ozone NAAQS). 

EPA designated one new equivalent method for measuring concentrations of lead, and one new equivalent method for measuring concentrations of particulate matter (PM10) in ambient air.