# Air Plan Approval; Virginia; Revision to the Regulatory Definition of Volatile Organic Compound
> **Rule** · Final rule. · Published 2026-04-23 · Effective 2026-05-26 · 91 FR 21726
## Document
- **Document number:** 2026-07885
- **Category:** other
- **Federal Register citation:** 91 FR 21726
- **CFR reference:** 40 CFR 52
- **Publication date:** 2026-04-23
- **Effective date:** 2026-05-26
- **State:** VA
- **EPA docket:** EPA-R03-OAR-2025-0225
## Abstract

The Environmental Protection Agency (EPA) is approving a state implementation plan (SIP) revision (Revision A23) submitted by the Commonwealth of Virginia. This revision amends the definition of volatile organic compound (VOC) in the Virginia Administrative Code (VAC) to align with the EPA's regulatory definition of VOC. The EPA is approving this revision to update the definition of VOC in the Virginia SIP.

## Source
- [Federal Register document](https://www.federalregister.gov/documents/2026/04/23/2026-07885/air-plan-approval-virginia-revision-to-the-regulatory-definition-of-volatile-organic-compound)
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