Air Plan Approval; WA; Update to Materials Incorporated by Reference
other · Rule · Published 2025-08-21 · Effective 2025-08-21 · 90 FR 40738
Document
Document number
2025-15992
Federal Register citation
90 FR 40738
CFR reference
40 CFR 52
Type
Rule
Action
Final rule; administrative change.
Category
other
Publication date
2025-08-21
Effective date
2025-08-21
EPA docket
EPA-R10-OAR-2025-0320
Abstract
The Environmental Protection Agency (EPA) is updating the materials that are incorporated by reference (IBR) into the Washington State Implementation Plan (SIP). The regulations affected by this update have been previously submitted by Washington and approved by the EPA. This update affects the materials that are available for public inspection at the National Archives and Records Administration (NARA) and the EPA Regional Office.