# Clean Air Act Approval and Promulgation of Carbon Monoxide Implementation Plan for the State of Washington: Puget Sound Emission Inventory
> **Rule** · Direct final rule. · Published 1996-08-08 · Effective 1996-09-23 · 61 FR 41331
## Document
- **Document number:** 96-20139
- **Category:** air-emissions
- **Federal Register citation:** 61 FR 41331
- **CFR reference:** 40 CFR 52
- **Publication date:** 1996-08-08
- **Effective date:** 1996-09-23
- **State:** WA
- **EPA docket:** WA47-7120a
## Abstract

EPA is approving the 1990 base year and 1995 projected year carbon monoxide emission inventory portion of the Puget Sound carbon monoxide (CO) State Implementation Plan (SIP) submitted on September 30, 1994, by the State of Washington Department of Ecology (Ecology) for the purpose of bringing about the attainment of the national ambient air quality standard (NAAQS) for CO.

## Source
- [Federal Register document](https://www.federalregister.gov/documents/1996/08/08/96-20139/clean-air-act-approval-and-promulgation-of-carbon-monoxide-implementation-plan-for-the-state-of)
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