# Approval and Promulgation of Implementation Plans; Oregon
> **Rule** · Direct final rule. · Published 1999-09-21 · Effective 1999-11-22 · 64 FR 51051
## Document
- **Document number:** 99-24447
- **Category:** air-emissions
- **Federal Register citation:** 64 FR 51051
- **CFR reference:** 40 CFR 52
- **Publication date:** 1999-09-21
- **Effective date:** 1999-11-22
- **State:** OR
- **EPA docket:** Docket #OR55-7270
## Abstract

Environmental Protection Agency (EPA) approves revisions to the Oregon State Implementation Plan. The Lakeview, Oregon PM10 Control Plan is intended to bring about the attainment of National Ambient Air Quality Standards for particulate matter with an aerodynamic diameter less than or equal to a nominal ten micrometers (PM10). The implementation plan was submitted to satisfy Federal requirements for moderate PM10 nonattainment areas.

## Source
- [Federal Register document](https://www.federalregister.gov/documents/1999/09/21/99-24447/approval-and-promulgation-of-implementation-plans-oregon)
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