# Approval and Promulgation of Implementation Plans; California State Implementation Plan Revision, Sacramento Metropolitan and South Coast Air Quality Management Districts and San Joaquin Valley Unified Air Pollution Control District
> **Rule** · Direct final rule. · Published 1999-03-19 · Effective 1999-05-18 · 64 FR 13514
## Document
- **Document number:** 99-6650
- **Category:** air-emissions
- **Federal Register citation:** 64 FR 13514
- **CFR reference:** 40 CFR 52
- **Publication date:** 1999-03-19
- **Effective date:** 1999-05-18
- **State:** CA
- **EPA docket:** CA 207-0136a FRL-6239-8
## Abstract

EPA is taking direct final action to approve revisions to the California State Implementation Plan (SIP). This action is an administrative change which revises the definitions in Sacramento Metropolitan Air Quality Management (SMAQMD) Rule 101, San Joaquin Valley Unified Air Pollution Control District (SJVUAPCD) Rule 1020, and South Coast Air Quality Management District (SCAQMD) Rule 1302. The intended effect of approving this action is to incorporate changes to the definitions for clarity and consistency and to update the Exempt Compound list in SMAQMD, SJVUAPCD, and SCAQMD rules to be consistent with the revised federal and state VOC definitions.

## Source
- [Federal Register document](https://www.federalregister.gov/documents/1999/03/19/99-6650/approval-and-promulgation-of-implementation-plans-california-state-implementation-plan-revision)
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