Approval and Promulgation of Implementation Plans; Colorado; Revisions to Regulation Number 7 and RACT Requirements for 2008 8-Hour Ozone Standard for the Denver Metro/North Front Range Nonattainment Area
air-emissions · Rule · Published 2021-02-24 · Effective 2021-03-26 · CO · 86 FR 11125
Document
Document number
2021-03278
Federal Register citation
86 FR 11125
CFR reference
40 CFR 52
Type
Rule
Action
Final rule.
Category
air-emissions
Publication date
2021-02-24
Effective date
2021-03-26
State
CO
EPA docket
EPA-R08-OAR-2020-0114
Abstract
The Environmental Protection Agency (EPA) is approving and conditionally approving State Implementation Plan (SIP) revisions submitted by the State of Colorado on May 31, 2017, May 14, 2018 and May 8, 2019. The revisions are to Colorado Air Quality Control Commission (Commission or AQCC) Regulation Number 7 (Reg. 7). The revisions to Reg. 7 address Colorado's reasonably available control technology (RACT) SIP obligations for Moderate 2008 ozone nonattainment areas; add incorporation by reference dates to rules and reference methods; and make typographical, grammatical, and formatting corrections. Also, in this action the EPA is correcting a July 3, 2018 final rule pertaining to Colorado's SIP. In that action, we inadvertently omitted regulatory text corresponding to "incorporation by reference" (IBR) materials for graphic arts and printing revisions to Reg. 7, Section XIII (adopted November 17, 2016). The EPA is taking this action pursuant to the Clean Air Act (CAA).