Delegation of National Emission Standards for Hazardous Air Pollutants for Source Categories; State of Arizona, Maricopa County Air Quality Department; State of Nevada, Nevada Division of Environmental Protection, Washoe County District Health Department

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Pursuant to section 112(l) of the 1990 Clean Air Act, EPA granted delegation of specific national emission standards for hazardous air pollutants (NESHAP) to the Maricopa County Air Quality Department on April 28, 2009, to the Nevada Division of Environmental Protection on December 1, 2008, and to the Washoe County District Health Department, Air Quality Management Division on February 26, 2009. EPA is proposing to revise the Code of Federal Regulations to reflect the current delegation status of NESHAP in Arizona and Nevada.