# Clean Air Act Finding of Attainment; Spokane, Washington Particulate Matter (PM-10) Nonattainment Area
> **Rule** · Final rule. · Published 2001-09-24 · 66 FR 48808
## Document
- **Document number:** 01-23765
- **Category:** air-emissions
- **Federal Register citation:** 66 FR 48808
- **CFR reference:** 40 CFR 81
- **Publication date:** 2001-09-24
- **State:** WA
- **EPA docket:** Docket #: WA-01-001
## Abstract

EPA has determined that the Spokane nonattainment area has attained the National Ambient Air Quality Standards for particulate matter with an aerodynamic diameter of less than or equal to 10 microns by the attainment date of December 31, 1997, as required by the Clean Air Act.

## Source
- [Federal Register document](https://www.federalregister.gov/documents/2001/09/24/01-23765/clean-air-act-finding-of-attainment-spokane-washington-particulate-matter-pm-10-nonattainment-area)
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