# Approval and Promulgation of Implementation Plans: Washington
> **Rule** · Direct final rule. · Published 1998-04-21 · Effective 1998-06-22 · 63 FR 19658
## Document
- **Document number:** 98-10399
- **Category:** air-emissions
- **Federal Register citation:** 63 FR 19658
- **CFR reference:** 40 CFR 52
- **Publication date:** 1998-04-21
- **Effective date:** 1998-06-22
- **State:** WA
- **EPA docket:** WA 66-71741a
## Abstract

Environmental Protection Agency (EPA) approves in part several minor revisions to the state of Washington Implementation Plan (SIP). Pursuant to section 110(a) of the Clean Air Act (CAA), the Director of the Washington Department of Ecology (Ecology) submitted a request to EPA dated December 30, 1997, to revise certain regulations of a local air pollution control agency, namely, the Puget Sound Air Pollution Control Agency (PSAPCA).

## Source
- [Federal Register document](https://www.federalregister.gov/documents/1998/04/21/98-10399/approval-and-promulgation-of-implementation-plans-washington)
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