Air Plan Disapproval; Colorado; RACT Elements for the 2008 8-Hour Ozone Standard for the Denver Metro/North Front Range Nonattainment Area
air-emissions · Rule · Published 2023-12-08 · Effective 2024-01-08 · CO · 88 FR 85511
Document
Document number
2023-26949
Federal Register citation
88 FR 85511
CFR reference
40 CFR 52
Type
Rule
Action
Final rule.
Category
air-emissions
Publication date
2023-12-08
Effective date
2024-01-08
State
CO
EPA docket
EPA-R08-OAR-2023-0272
Abstract
The Environmental Protection Agency (EPA) is disapproving portions of a state implementation plan (SIP) revision submitted by the State of Colorado to meet Clean Air Act (CAA) requirements for the 2008 8-hour ozone national ambient air quality standards (NAAQS) in the Denver Metro/North Front Range nonattainment area (DMNFR Area). Specifically, the EPA is disapproving certain reasonably available control technology (RACT) SIP submittals.