In this action, the Environmental Protection Agency (EPA) is determining that 60 days is insufficient time to complete the technical and other analyses and public notice-and-comment process required for our review of a petition submitted by the state of Connecticut pursuant to section 126 of the Clean Air Act (CAA). The petition requests that the EPA make a finding that the Brunner Island Steam Electric Station located in York County, Pennsylvania, emits air pollution that significantly contributes to nonattainment and interferes with maintenance of the 2008 ozone national ambient air quality standards (NAAQS) in Connecticut. Under section 307(d)(10) of CAA, the EPA is authorized to grant a time extension for responding to the petition if the EPA determines that the extension is necessary to afford the public, and the agency, adequate opportunity to carry out the purposes of the section 307(d)'s notice-and-comment rulemaking requirements. By this action, the EPA is making that determination. The EPA is therefore extending the deadline for acting on the petition to no later than January 25, 2017.