Colorado Nearing Finish Line for State Ozone Plan

Air quality along Colorado’s Front Range is improving and a plan showing how the state can meet a federal ozone standard is on track to be submitted to the federal government this spring.

Colorado’s Ozone State Implementation Plan (SIP) for the Denver Metro and Northern Front Range Nonattainment Area was approved by the nine-member Air Quality Control Commission at a hearing in November.

An approved ozone SIP is required under the Clean Air Act for regions like the northern Front Range classified as “moderate” nonattainment for ozone pollution.

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