# Revisions to the California State Implementation Plan, South Coast Air Quality Management District
> **Rule** · Direct final rule. · Published 2014-09-25 · Effective 2014-11-24 · 79 FR 57442
## Document
- **Document number:** 2014-22482
- **Category:** air-emissions
- **Federal Register citation:** 79 FR 57442
- **CFR reference:** 40 CFR 52
- **Publication date:** 2014-09-25
- **Effective date:** 2014-11-24
- **State:** CA
- **EPA docket:** EPA-R09-OAR-2014-0512
## Abstract

The Environmental Protection Agency (EPA) is taking direct final action to approve revisions to the South Coast Air Quality Management District (SCAQMD) portion of the California State Implementation Plan (SIP). These revisions concern oxides of nitrogen (NO<INF>X</INF>) emissions from boilers, steam generators, and process heaters. We are approving local rules that regulate these emission sources under the Clean Air Act (CAA or the Act).

## Source
- [Federal Register document](https://www.federalregister.gov/documents/2014/09/25/2014-22482/revisions-to-the-california-state-implementation-plan-south-coast-air-quality-management-district)
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