National Emission Standards for Hazardous Air Pollutants; Delegation of Authority to Oklahoma
air-emissions · Rule · Published 2026-01-02 · Effective 2026-02-02 · OK · 91 FR 52
Document
Document number
2025-24149
Federal Register citation
91 FR 52
CFR reference
40 CFR 61
Type
Rule
Action
Final rule; notice of delegation.
Category
air-emissions
Publication date
2026-01-02
Effective date
2026-02-02
State
OK
EPA docket
EPA-R06-OAR-2020-0086
Abstract
The Oklahoma Department of Environmental Quality (ODEQ) has submitted updated regulations for receiving delegation and approval of its program for the implementation and enforcement of certain National Emission Standards for Hazardous Air Pollutants (NESHAP) for all sources as provided for under previously approved delegation mechanisms. The updated State regulations incorporate by reference certain NESHAP promulgated by the Environmental Protection Agency (EPA) at parts 61 and 63, as they existed through June 30, 2023. The EPA is providing notice that it is taking final action to approve the delegation of certain NESHAP to ODEQ. The delegation of authority under this action applies to sources located in certain areas of Indian country as discussed herein.