2018-03270: Air Plan Approval; Douglas, Arizona; Second 10-Year Sulfur Dioxide Maintenance Plan
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The Environmental Protection Agency (EPA) is proposing to approve, as part of the State Implementation Plan (SIP) for the State of Arizona, the second 10-year maintenance plan for the Douglas maintenance area for the 1971 National Ambient Air Quality Standards (NAAQS or "standards") for sulfur dioxide (SO<INF>2</INF>).
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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