# Revisions to the California State Implementation Plan, South Coast Air Quality Management District
> **Rule** · Final rule. · Published 2006-01-04 · Effective 2006-02-03 · 71 FR 241
## Document
- **Document number:** 06-56
- **Category:** air-emissions
- **Federal Register citation:** 71 FR 241
- **CFR reference:** 40 CFR 52
- **Publication date:** 2006-01-04
- **Effective date:** 2006-02-03
- **State:** CA
- **EPA docket:** EPA-R09-OAR-2005-CA-0015
## Abstract

EPA is finalizing approval of a revision to the South Coast Air Quality Management District (SCAQMD) portion of the California State Implementation Plan (SIP). This revision was proposed in the Federal Register on June 14, 2005 and concerns particulate matter (PM) and ammonia emissions from fluid catalytic cracking units (FCCUs) at oil refineries. We are approving a local rule that regulates these emission sources under the Clean Air Act as amended in 1990 (CAA or the Act).

## Source
- [Federal Register document](https://www.federalregister.gov/documents/2006/01/04/06-56/revisions-to-the-california-state-implementation-plan-south-coast-air-quality-management-district)
---
*AI Analytics · CC0 1.0*