# Revisions to the California State Implementation Plan, Northern Sierra Air Quality Management District, Including Nevada County Air Pollution Control District Portion, Plumas County Air Pollution Control District Portion, and Sierra County Air Pollution Control District Portion
> **Rule** · Direct final rule. · Published 2008-07-09 · Effective 2008-09-08 · 73 FR 39237
## Document
- **Document number:** E8-15435
- **Category:** air-emissions
- **Federal Register citation:** 73 FR 39237
- **CFR reference:** 40 CFR 52
- **Publication date:** 2008-07-09
- **Effective date:** 2008-09-08
- **State:** CA
- **EPA docket:** EPA-R09-OAR-2006-0186, FRL-8569-6
## Abstract

EPA is taking direct final action to approve revisions to the Northern Sierra Air Quality Management District (NSAQMD) portion of the California State Implementation Plan (SIP) portion of the SIP, including the Nevada County Air Pollution Control District (NCAPCD), Plumas County Air Pollution Control district (PCAPCD), and Sierra County Air Pollution Control District (SCAPCD) portions of the SIP. These revisions concern the permitting of air pollution sources. We are approving local and removing local rules under authority of the Clean Air Act as amended in 1990 (CAA or the Act).

## Source
- [Federal Register document](https://www.federalregister.gov/documents/2008/07/09/E8-15435/revisions-to-the-california-state-implementation-plan-northern-sierra-air-quality-management)
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