Energy & environment · 08/10/2004

EPA Proposes Approval of Arizona Air Quality Plan, Redesignation Request

The Environmental Protection Agency (EPA) is proposing to approve the Maricopa Association of Governments' (MAG) serious area carbon monoxide (CO) state implementation plan for the Maricopa County CO nonattainment area, which includes the metropolitan Phoenix area in Arizona, as meeting the Clean Air Act (CAA) requirements for serious CO nonattainment areas. The proposal also includes the approval of the MAG CO redesignation request and maintenance plan for the Maricopa County CO nonattainment area, as well as a boundary change to exclude the Gila River Indian Community from the Maricopa County maintenance area.