Air Plan Approval; Revisions to Colorado Common Provisions Regulation
air-emissions · Rule · Published 2024-12-27 · Effective 2025-01-27 · CO · 89 FR 105461
Document
Document number
2024-30695
Federal Register citation
89 FR 105461
CFR reference
40 CFR 52
Type
Rule
Action
Final rule.
Category
air-emissions
Publication date
2024-12-27
Effective date
2025-01-27
State
CO
EPA docket
EPA-R08-OAR-2024-0207
Abstract
The Environmental Protection Agency (EPA) is approving revisions to the Common Provisions Regulation of the Colorado State Implementation Plan (SIP). These revisions were submitted by the State of Colorado in response to the EPA's June 12, 2015, Findings of Substantial Inadequacy and "SIP calls" for certain provisions in the SIP related to affirmative defenses applicable to excess emissions during startup, shutdown, and malfunction (SSM) events. The EPA is approving these SIP revisions because the Agency has determined that they are in accordance with the requirements for SIP provisions under the Clean Air Act (CAA or the Act).