The Environmental Protection Agency (EPA) is approving a revision to the New York State Implementation Plan (SIP) for the purposes of implementing controls of air pollution by particulate matter (PM). The SIP revision consists of amendments to existing regulations outlined within New York's Codes, Rules, and Regulations (NYCRR) that impose control measures for sources of PM. This action is being taken in accordance with the requirements of the Clean Air Act.

The Environmental Protection Agency (EPA) is approving in part, conditionally approving in part, and disapproving in part a state implementation plan (SIP) revision submitted by the State of Nevada pursuant to the requirements of the Clean Air Act (CAA or ``Act'') for the implementation, maintenance, and enforcement of the 2015 national ambient air quality standards (NAAQS) for ozone. As part of this action, we are reclassifying a region of the State for emergency episode planning purposes with respect to ozone. Finally, we are approving a regulatory revision into the Nevada SIP.

The Environmental Protection Agency (EPA) is finalizing amendments to the new source performance standards for Automobile and Light Duty Truck Surface Coating Operations pursuant to the review required by the Clean Air Act. The EPA determined that revisions to the NSPS were needed to reflect the degree of emission limitation achievable through the application of the best system of emission reduction (BSER).

Pursuant to the U.S. Environmental Protection Agency's Significant New Alternatives Policy program, this action lists certain substances as acceptable, subject to use conditions, in the refrigeration and air conditioning sector for chillers--comfort cooling, residential dehumidifiers, residential and light commercial air conditioning and heat pumps, and a substance as acceptable, subject to use conditions and narrowed use limits, in very low temperature refrigeration.