Air Plan Approval; Delaware; Infrastructure Requirements for the 2012 Fine Particulate Matter Standard

The Environmental Protection Agency (EPA) is proposing to approve portions of a state implementation plan (SIP) revision submittal from the State of Delaware pursuant to the Clean Air Act (CAA). Whenever new or revised national ambient air quality standards (NAAQS) are promulgated, the CAA requires states to submit a plan for the implementation, maintenance, and enforcement of such NAAQS. The plan is required to address basic program elements, including, but not limited to, regulatory structure, monitoring, modeling, legal authority, and adequate resources necessary to assure attainment and maintenance of the standards. These elements are referred to as infrastructure requirements. Delaware made a SIP submittal to address the infrastructure requirements for the 2012 fine particulate matter (PM2.5) NAAQS. This action proposes to approve portions of this submittal pursuant to section 110 of the CAA. EPA is not proposing any action on the portion of the submittal which addresses interstate transport of emissions and intends to take later separate action on this portion.