Regulation & law · 05/11/2021Updated: 10/17/2026 · 1 min read

EPA Approves Colorado's Revised Air Quality Regulation to Meet 2008 Ozone Standard

The Environmental Protection Agency (EPA) has approved revisions to Colorado's air quality regulation, Regulation Number 7, to address the state's obligations under the 2008 ozone National Ambient Air Quality Standard, including requirements for reasonably available control technology and updates to volatile organic compounds and nitrogen oxides regulations.