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Regulacje i polityka gospodarcza · 11.09.2025

EPA Proposes Approval of Montana's Regional Haze Plan

The Environmental Protection Agency (EPA) is proposing to approve Montana's regional haze state implementation plan (SIP) submission, addressing the state's long-term strategies to improve visibility in Class I Federal areas, as required by the Clean Air Act (CAA) and the EPA's Regional Haze Rule (RHR).

Source: Federal Register — All DocumentsOpen original release →