# Approval and Promulgation of Implementation Plans; California State Implementation Plan Revision, San Diego Air Pollution Control District and Ventura County Air Pollution Control District
> **Rule** · Direct final rule. · Published 1998-12-07 · Effective 1999-02-05 · 63 FR 67419
## Document
- **Document number:** 98-32417
- **Category:** air-emissions
- **Federal Register citation:** 63 FR 67419
- **CFR reference:** 40 CFR 52
- **Publication date:** 1998-12-07
- **Effective date:** 1999-02-05
- **State:** CA
- **EPA docket:** CA 211-0105
## Abstract

EPA is taking direct final action on revisions to the California State Implementation Plan. The revisions concern rules from the following districts: San Diego Air Pollution Control District (SDAPCD) and Ventura County Air Pollution Control District (VTCAPCD). The rules control particulate matter (PM) emissions related to visible emissions and abrasive blasting, respectively. This approval action will incorporate these rules into the federally approved SIP. The intended effect of approving these rules is to regulate emissions of PM in accordance with the requirements of the Clean Air Act, as amended in 1990 (CAA or the Act). Thus, EPA is finalizing the approval of these revisions into the California SIP under provisions of the CAA regarding EPA action on SIP submittals and SIPs for national primary and secondary ambient air quality standards.

## Source
- [Federal Register document](https://www.federalregister.gov/documents/1998/12/07/98-32417/approval-and-promulgation-of-implementation-plans-california-state-implementation-plan-revision-san)
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