Approval and Promulgation of Implementation Plans; Revisions to the Nevada State Implementation Plan; Updated Statutory and Regulatory Provisions; Rescissions

Under the Clean Air Act, EPA is approving certain revisions, and disapproving certain other revisions, to the Nevada state implementation plan. These revisions were the subject of a proposed rule published in the Federal Register on December 14, 2007. The provisions that EPA is approving include certain definitions; prohibitory rules; provisions related to legal authority and enforcement; rules establishing opacity, sulfur and volatile organic compounds limits; and rescission of abbreviations. EPA is disapproving the rescission of a certain definition and the rescission of a rule related to emission discharge information. EPA is taking this action under the Clean Air Act obligation to take action on submittals of revisions to state implementation plans. The effect of this action is to update the Nevada state implementation plan with amended or recodified rules and to rescind a provision found to be unnecessary for further retention in the plan.