The Environmental Protection Agency (EPA) is approving a revision to the Nevada Regional Haze State Implementation Plan (SIP) submitted by the Nevada Division of Environmental Protection. The revision consists of the "Nevada Regional Haze 5-Year Progress Report" that addresses Regional Haze Rule requirements under the Clean Air Act to document progress towards achieving visibility goals by 2018 in Class I Federal areas in Nevada and nearby states. The EPA is taking final action to approve Nevada's determination that the regional haze requirements in the existing Nevada Regional Haze SIP do not require any substantive revision at this time.