Clean Air Act Reclassification; Colorado; Reclassification of the Denver Metro/North Front Range 2015 Ozone Nonattainment Area to Serious
air-emissions · Rule · Published 2024-07-24 · Effective 2024-07-24 · CO · 89 FR 59832
Document
Document number
2024-16123
Federal Register citation
89 FR 59832
CFR reference
40 CFR 81
Type
Rule
Action
Final rule.
Category
air-emissions
Publication date
2024-07-24
Effective date
2024-07-24
State
CO
EPA docket
EPA-R08-OAR-2024-0318
Abstract
Under the Clean Air Act (CAA), the Environmental Protection Agency (EPA) is granting a request by the State of Colorado to reclassify the Denver Metro/North Front Range ozone nonattainment area ("DMNFR) from "Moderate" to "Serious" for the 2015 8-hour ozone national ambient air quality standards (NAAQS).