WASHINGTON, Jan. 16 (TNSFR) -- The Environmental Protection Agency (EPA) has finalized its approval of a State Implementation Plan (SIP) revision submitted by the Montana Department of Environmental Quality (MDEQ). The revision, which was submitted on January 30, 2024, involves changing the status of the oxygenated fuels program in Missoula, Montana, from an active control measure to a contingency measure under the Carbon Monoxide (CO) Limited Maintenance Plan (LMP).

Montana's . . .

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