OPINION
M. SMITH, Circuit Judge:
WildEarth Guardians (WildEarth), a non-profit environmental organization, petitions for review of the Environmental Protection Agency's (EPA) approval of the State of Nevada's State Implementation Plan (SIP) for regional haze under the Clean Air Act, 42 U.S.C. §§ 7401-7671q (CAA). According to WildEarth, Nevada's SIP is inadequate, and the EPA's decision to approve it was arbitrary and capricious. WildEarth thus...
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