# Approval and Promulgation of Implementation Plans; California Owens Valley Nonattainment Area; PM-10
> **Rule** · Final rule. · Published 1999-09-03 · Effective 1999-10-04 · 64 FR 48305
## Document
- **Document number:** 99-22930
- **Category:** air-emissions
- **Federal Register citation:** 64 FR 48305
- **CFR reference:** 40 CFR 52
- **Publication date:** 1999-09-03
- **Effective date:** 1999-10-04
- **State:** CA
- **EPA docket:** CA-221-158
## Abstract

EPA is taking final action to approve a State Implementation Plan (SIP) submitted by the State of California for attaining the particulate matter (PM-10) national ambient air quality standards (NAAQS) in the Owens Valley Planning Area, along with the State's request for an extension to December 31, 2006 to attain the PM-10 NAAQS in the area. EPA is taking these final actions under provisions of the Clean Air Act (CAA) regarding EPA action on SIP submittals, SIPs for national primary and secondary standards, and plan requirements for nonattainment areas.

## Source
- [Federal Register document](https://www.federalregister.gov/documents/1999/09/03/99-22930/approval-and-promulgation-of-implementation-plans-california-owens-valley-nonattainment-area-pm-10)
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