2020-19343: Air Plan Partial Approval and Partial Disapproval; Arizona; Maricopa County Air Quality Management Department; Reasonably Available Control Technology State Implementation Plan
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The Environmental Protection Agency (EPA) is proposing to partially approve and partially disapprove a revision to the Maricopa County Air Quality Department (MCAQD or County) portion of the Arizona State Implementation Plan (SIP) concerning the MCAQD's demonstration regarding reasonably available control technology (RACT) requirements and negative declarations for the 2008 8-hour ozone National Ambient Air Quality Standards (NAAQS or "standards") in the portion of the Phoenix-Mesa ozone nonattainment area under the jurisdiction of the MCAQD. We are proposing action on a SIP revision under the Clean Air Act (CAA or the Act). We are taking comments on this proposal and plan to follow with a final action.
The agency’s own summary, as published.
What this changes
Amends 1 part of the Code of Federal Regulations — the standing rules this notice rewrites.
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