Findings of Failure To Submit a Clean Air Act Section 110 State Implementation Plan for Interstate Transport for the 2015 Ozone National Ambient Air Quality Standards (NAAQS)

The Environmental Protection Agency (EPA) is taking final action finding that seven states have failed to submit infrastructure State Implementation Plans (SIPs) to satisfy certain interstate transport requirements of the Clean Air Act (CAA) with respect to the 2015 8-hour ozone national ambient air quality standards (NAAQS). Specifically, these requirements pertain to prohibiting significant contribution to nonattainment, or interference with maintenance, of the 2015 8-hour ozone NAAQS in other states. These findings of failure to submit establish a 2-year deadline for the EPA to promulgate Federal Implementation Plans (FIPs) to address these interstate transport requirements for a given state unless, prior to the EPA promulgating a FIP, the state submits, and the EPA approves, a SIP that meets these requirements.