# Approval and Promulgation of Air Quality Implementation Plans; Illinois; Air Quality Standards Revision
> **Rule** · Direct final rule. · Published 2013-05-23 · Effective 2013-07-22 · 78 FR 30770
## Document
- **Document number:** 2013-12203
- **Category:** air-emissions
- **Federal Register citation:** 78 FR 30770
- **CFR reference:** 40 CFR 52
- **Publication date:** 2013-05-23
- **Effective date:** 2013-07-22
- **State:** IL
- **EPA docket:** EPA-R05-OAR-2012-0540
## Abstract

EPA is approving a revision to the Illinois state implementation plan (SIP) to reflect current National Ambient Air Quality Standards (NAAQS) for ozone and particulate matter (PM). EPA is approving a revision to add new incorporations by reference associated with current ozone, lead, and particulate matter NAAQS into the Illinois SIP. EPA is also approving revisions that amend typographical errors in the Illinois SIP.

## Source
- [Federal Register document](https://www.federalregister.gov/documents/2013/05/23/2013-12203/approval-and-promulgation-of-air-quality-implementation-plans-illinois-air-quality-standards)
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