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Regulacje i polityka gospodarcza · 18/11/2025

EPA Approves Montana's Air Plan for 2015 Ozone NAAQS

The Environmental Protection Agency (EPA) has approved Montana's state implementation plan (SIP) for the 2015 8-hour ozone National Ambient Air Quality Standards (NAAQS), ensuring the state's air quality management program meets Clean Air Act requirements.

Source: Federal Register — All DocumentsOpen original release →