2025-24140Proposed Rule

EPA Backs Colorado's Air Rule Tweaks for Better Readability

Published Date: 1/2/2026

Proposed Rule

Summary

The EPA is proposing to approve some cleanup changes to Colorado’s air quality rules that make them easier to read and follow. These updates don’t change any big rules but help keep things clear and organized for the Colorado Department of Public Health and Environment. If no one objects by February 2, 2026, these improvements will go into effect without delay, with no extra costs involved.

No Economic Impacts Identified for this Document

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Key Dates

Published Date
Comments Due
1/2/2026
2/2/2026

Department and Agencies

Department
Independent Agency
Agency
Environmental Protection Agency
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