Approval and Promulgation of Implementation Plans and Designation of Areas for Air Quality Planning Purposes; State of Nevada; Redesignation of Clark County to Attainment for the 1997 8-Hour Ozone Standard

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EPA is proposing to approve, as a revision of the Nevada state implementation plan, the State's plan for maintaining the 1997 8-hour ozone standard in Clark County for ten years beyond redesignation, and the related motor vehicle emissions budgets, because they meet the applicable requirements for such plans and budgets. EPA is also proposing to approve a request from the Nevada Division of Environmental Protection to redesignate the Clark County ozone nonattainment area to attainment of the 1997 8-hour ozone National Ambient Air Quality Standard because the request meets the statutory requirements for redesignation under the Clean Air Act.