Air Plan Approval; Colorado; Serious Attainment Plan Contingency Measures and RACT Require
The Environmental Protection Agency (EPA) is approving state implementation plan (SIP) submittals from the State of Colorado under the Clean Air Act (CAA) that address contingency measures and Reasonably Available Control Technology (RACT) requirements for the 2008 ozone National Ambient Air Quality Standard (NAAQS) fo
| Agency | Environmental Protection Agency |
|---|---|
| Document type | Rule |
| Published | 2026-04-09 |
| Summary | The Environmental Protection Agency (EPA) is approving state implementation plan (SIP) submittals from the State of Colorado under the Clean Air Act (CAA) that address contingency measures and Reasonably Available Control Technology (RACT) requirements for the 2008 ozone National Ambient Air Quality Standard (NAAQS) for the Denver Metro/North Front Range (DMNFR) Serious ozone nonattainment area. The EPA finds that the State has met the applicable CAA requirements for Serious area contingency measures as well as RACT for certain stationary sources. Accordingly, the EPA is approving the respective SIP revisions to implement the submitted motor vehicle coating contingency measure, but we are no |
| Document number | 2026-06837 |
| Official record | https://www.federalregister.gov/documents/2026/04/09/2026-06837/air-plan-approval-colorado-serious-attainment-plan-contingency-measures-and-ract-requirements-for |