# Approval and Promulgation of Air Quality Implementation Plans; Illinois; VOM Definition
> **Rule** · Direct final rule. · Published 2015-02-20 · Effective 2015-04-21 · 80 FR 9202
## Document
- **Document number:** 2015-03450
- **Category:** air-emissions
- **Federal Register citation:** 80 FR 9202
- **CFR reference:** 40 CFR 52
- **Publication date:** 2015-02-20
- **Effective date:** 2015-04-21
- **State:** IL
- **EPA docket:** EPA-R05-OAR-2014-0504
## Abstract

The Environmental Protection Agency (EPA) is approving a request submitted by the Illinois Environmental Protection Agency (Illinois EPA) on June 10, 2014, to revise the Illinois State Implementation Plan (SIP). The submission amends the Illinois Administrative Code (IAC) by updating the definition of "volatile organic material (VOM) or volatile organic compound (VOC)" to add five compounds to the list of exempted compounds. These revisions are based on EPA rulemakings in 2013 which added these compounds to the list of chemical compounds that are excluded from the Federal definition of VOC because, in their intended uses, they make negligible contributions to tropospheric ozone formation.

## Source
- [Federal Register document](https://www.federalregister.gov/documents/2015/02/20/2015-03450/approval-and-promulgation-of-air-quality-implementation-plans-illinois-vom-definition)
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