Finding of Failure To Submit a Section 110 State Implementation Plan for Interstate Transport for the 2012 Annual National Ambient Air Quality Standards for Fine Particles

The Environmental Protection Agency (EPA) is taking final action finding that Washington State failed to submit an infrastructure State Implementation Plan (SIP) to satisfy certain interstate transport requirements of the Clean Air Act (CAA) with respect to the 2012 annual fine particles (PM<INF>2.5</INF>) national ambient air quality standard (NAAQS). Specifically, these requirements pertain to significant contribution to nonattainment, or interference with maintenance, of the 2012 annual PM<INF>2.5</INF> NAAQS in other states. This finding of failure to submit establishes a 2-year deadline for the EPA to promulgate a Federal Implementation Plan (FIP) to address the interstate transport SIP requirements pertaining to significant contribution to nonattainment and interference with maintenance unless, prior to the EPA promulgating a FIP, the state submits, and the EPA approves, a SIP that meets these requirements.