# Approval and Promulgation of State Implementation Plans: State of Washington; Regional Haze State Implementation Plan
> **Rule** · Final rule. · Published 2012-12-06 · Effective 2013-01-07 · 77 FR 72742
## Document
- **Document number:** 2012-29397
- **Category:** air-emissions
- **Federal Register citation:** 77 FR 72742
- **CFR reference:** 40 CFR 52
- **Publication date:** 2012-12-06
- **Effective date:** 2013-01-07
- **State:** WA
- **EPA docket:** EPA-R10-OAR-2012-0078
## Abstract

EPA is taking final action to approve the Best Available Retrofit Technology (BART) determination for NO<INF>X</INF> for the TransAlta Centralia Generation LLC coal-fired power plant in Centralia, Washington (TransAlta). The Washington State Department of Ecology (Ecology) submitted its Regional Haze State Implementation Plan (SIP) on December 22, 2010 to meet the requirements of the Clean Air Act Regional Haze Rule at 40 CFR 50.308. On December 29, 2011 Ecology submitted an update to the SIP submittal containing a revised and updated BART determination for TransAlta. On May 23, 2012, EPA proposed to approve the portion of the revised SIP submission containing the BART determination for TransAlta.77 FR 30467. EPA plans to act on the remaining Regional Haze SIP elements for Washington in the near future.

## Source
- [Federal Register document](https://www.federalregister.gov/documents/2012/12/06/2012-29397/approval-and-promulgation-of-state-implementation-plans-state-of-washington-regional-haze-state)
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