2021-03482: Air Plan Limited Approval, Limited Disapproval; Arizona; Arizona Department of Environmental Quality
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The Environmental Protection Agency (EPA) is proposing a limited approval and limited disapproval of a portion of a state implementation plan (SIP) submission made by the State of Arizona to address Moderate area nonattainment plan requirements for purposes of the 1987 24-hour national ambient air quality standards (NAAQS) for particulate matter less than 10 microns in diameter (PM<INF>10</INF>). The SIP submission includes an amended statute and certain state rules that govern emissions of particulate matter (PM) from agricultural activity.
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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