2017-19462: Montana Second 10-Year Carbon Monoxide Maintenance Plan for Missoula
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The Environmental Protection Agency (EPA) is proposing to approve a State Implementation Plan (SIP) revision submitted to the EPA by the State of Montana. On September 19, 2016, the Governor of Montana's designee submitted a Clean Air Act (CAA) section 175A(b) second 10-year limited maintenance plan for the Missoula area for the carbon monoxide (CO) National Ambient Air Quality Standard (NAAQS). This limited maintenance plan addresses maintenance of the CO NAAQS for a second 10-year period beyond the original redesignation. This action is being taken under sections 110 and 175A of the CAA.
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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