# Approval and Promulgation of State Implementation Plans; Washington: Puget Sound Ozone Maintenance Plan
> **Rule** · Direct Final rule. · Published 2014-05-02 · Effective 2014-07-01 · 79 FR 25010
## Document
- **Document number:** 2014-09878
- **Category:** air-emissions
- **Federal Register citation:** 79 FR 25010
- **CFR reference:** 40 CFR 52
- **Publication date:** 2014-05-02
- **Effective date:** 2014-07-01
- **State:** WA
- **EPA docket:** EPA-R10-OAR-2008-0122
## Abstract

The Environmental Protection Agency (EPA) is taking a direct final action to approve a maintenance plan for the Central Puget Sound area to maintain the 8-hour ozone National Ambient Air Quality Standard (NAAQS) through 2015. This plan was submitted by the Washington Department of Ecology (Ecology or "the State") as a revision to its State Implementation Plan (SIP) on January 10, 2008. This action finds that the maintenance plan for this area meets all relevant Clean Air Act (CAA) requirements for approval, and demonstrates that the Central Puget Sound area will remain in attainment with the 1997 and 2008 ozone NAAQS through 2015.

## Source
- [Federal Register document](https://www.federalregister.gov/documents/2014/05/02/2014-09878/approval-and-promulgation-of-state-implementation-plans-washington-puget-sound-ozone-maintenance)
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