Environmental Protection Agency
Revisions to the Arizona State Implementation Plan, Maricopa County Air Quality Department
October 14, 2009 - 74 FR 52693 - RIN: - Download Full Notice: Text | PDF
EPA is taking direct final action to approve revisions to the Maricopa County Air Quality Department (MCAQD) portion of the Arizona State Implementation Plan (SIP). These revisions concern particulate matter (PM) emissions and precursors from steam generating units, cogeneration units, stationary gas turbines, process heaters and internal combustion engines. We are approving local rules that regulate these emission sources under the Clean Air Act as amended in 1990 (CAA or the Act).
Agency Contact: Idalia Perez, EPA Region IX, (415) 972-3248, perez.idalia@epa.gov.
This rule is final. Its effective date is December 14, 2009.
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