# Approval and Promulgation of Air Quality Implementation Plans; Illinois; Amendments to Vehicle Inspection and Maintenance Program for Illinois
> **Rule** · Final rule. · Published 2014-08-13 · Effective 2014-09-12 · 79 FR 47377
## Document
- **Document number:** 2014-17331
- **Category:** air-emissions
- **Federal Register citation:** 79 FR 47377
- **CFR reference:** 40 CFR 52
- **Publication date:** 2014-08-13
- **Effective date:** 2014-09-12
- **State:** IL
- **EPA docket:** EPA-R05-OAR-2013-0046
## Abstract

The Environmental Protection Agency (EPA) is approving a state implementation plan (SIP) revision submitted by the Illinois Environmental Protection Agency on November 29, 2012, concerning the state's vehicle inspection and maintenance (I/M) program in the Chicago and Metro-East St. Louis ozone nonattainment areas in Illinois. The revision amends I/M program requirements in the active control measures portion of the ozone SIP to reflect changes that have been implemented at the state level since EPA fully approved the I/M program on February 22, 1999. The submittal also includes a demonstration under section 110(l) of the Clean Air Act (CAA) addressing lost emission reductions associated with the program changes.

## Source
- [Federal Register document](https://www.federalregister.gov/documents/2014/08/13/2014-17331/approval-and-promulgation-of-air-quality-implementation-plans-illinois-amendments-to-vehicle)
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