# Approval and Promulgation of Implementation Plans; California; San Joaquin Valley; Contingency Measures for the 1997 PM2.5 Standards
> **Rule** · Final rule. · Published 2014-05-22 · Effective 2014-06-23 · 79 FR 29327
## Document
- **Document number:** 2014-11681
- **Category:** air-emissions
- **Federal Register citation:** 79 FR 29327
- **CFR reference:** 40 CFR 52
- **Publication date:** 2014-05-22
- **Effective date:** 2014-06-23
- **State:** CA
- **EPA docket:** EPA-R09-OAR-2013-0534
## Abstract

The Environmental Protection Agency (EPA) is approving a State implementation plan (SIP) revision submitted by California that corrects deficiencies in the Clean Air Act (CAA) contingency measures for the 1997 annual and 24-hour national ambient air quality standards (NAAQS) for fine particulate matter (PM<INF>2.5</INF>) in the San Joaquin Valley (SJV). Approval of this SIP revision lifts the CAA section 179(b)(2) offset sanctions and terminates the CAA section 179(b)(1) highway funding sanction clock triggered by the EPA's partial disapproval of the SJV SIP for attainment of the 1997 PM<INF>2.5</INF> NAAQS on November 9, 2011.

## Source
- [Federal Register document](https://www.federalregister.gov/documents/2014/05/22/2014-11681/approval-and-promulgation-of-implementation-plans-california-san-joaquin-valley-contingency-measures)
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