Air Plan Approval; California; Mojave Desert Air Quality Management District; Definition of Terms
air-emissions · Rule · Published 2026-01-08 · Effective 2026-02-09 · CA · 91 FR 607
Document
Document number
2026-00194
Federal Register citation
91 FR 607
CFR reference
40 CFR 52
Type
Rule
Action
Final rule.
Category
air-emissions
Publication date
2026-01-08
Effective date
2026-02-09
State
CA
EPA docket
EPA-R09-OAR-2022-0858
Abstract
The Environmental Protection Agency (EPA) is taking final action to approve a revision to the Mojave Desert Air Quality Management District (MDAQMD) portion of the California State Implementation Plan (SIP). The revision concerns definitions that are necessary to implement and enforce local rules that regulate air pollution under the Clean Air Act (CAA or the "Act"). We are also approving the rescission of earlier versions of this rule from the California SIP as they are no longer needed under the CAA.