2019-14249: Approval and Promulgation of Implementation Plans; Montana; Regional Haze 5-Year Progress Report State Implementation Plan
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The Environmental Protection Agency (EPA) proposes to approve Montana's regional haze progress report, submitted by the Montana Department of Environmental Quality (MDEQ) as a revision to its State Implementation Plan (SIP). Montana's SIP revision addresses requirements of the Clean Air Act (CAA) and the EPA's rules that require states to submit periodic reports describing progress toward Reasonable Progress Goals (RPGs) established for regional haze and a determination of the adequacy of the state's existing plan addressing regional haze. Montana's progress report explains the measures that have been implemented in the regional haze plan due to be in place by the date of the progress report and that visibility in the majority mandatory federal Class I areas affected by emissions from Montana sources is improving, and that a revision of the plan is not needed at this time. The EPA is proposing approval of Montana's determination that the State's regional haze plan is adequate to meet RPGs for the first implementation period, which extended through 2018 and requires no substantive revision at this time.
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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