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Energy & environment · 13/05/2022Updated: 10/17/2026 · 1 min read

EPA Conditionally Approves Colorado Air Quality Plan Revisions

Summary

The Environmental Protection Agency (EPA) has conditionally approved revisions to Colorado's air quality plan, addressing ozone precursor and hydrocarbon emissions from oil and gas operations in the Denver Metro/North Front Range nonattainment area, pursuant to the Clean Air Act (CAA).

Original source language: Federal Register — Environmental Protection AgencyOpen original release →

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Energy & environment · 5/29/2026

EPA Approves Revisions to California Air Pollution Control Districts

The Environmental Protection Agency (EPA) has taken final action to approve revisions to the San Joaquin Valley Unified Air Pollution Control District, Ventura County Air Pollution Control District, and South Coast Air Quality Management District portions of the California State Implementation Plan, regulating emissions of volatile organic compounds from crude oil and natural gas production facilities.

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Energy & environment · 5/29/2026

EPA Approves Negative Declarations for District of Columbia Air Quality Plans

The Environmental Protection Agency (EPA) has approved negative declarations submitted by the District of Columbia Department of Energy and Environment (DCDOEE) on July 19, 2024, and August 28, 2024, certifying no large municipal waste combustors, crude oil and natural gas facilities, or electric utility generating units subject to the Clean Air Act within the District of Columbia.

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Energy & environment · 5/29/2026

Air Plan Approval; Michigan; Determination of Attainment by the Attainment Date for the 2015 Ozone Standards

The Environmental Protection Agency (EPA) is proposing to determine that the Detroit, Michigan nonattainment area attained the 2015 ozone National Ambient Air Quality Standards by the applicable attainment date, relying on an exceptional events request submitted by the Michigan Department of Environment, Great Lakes, and Energy (EGLE) on February 19, 2026.

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