# Air Plan Approval; Illinois; Regional Haze Progress Report
> **Rule** · Direct final rule. · Published 2017-10-18 · Effective 2017-12-18 · 82 FR 48431
## Document
- **Document number:** 2017-22502
- **Category:** air-emissions
- **Federal Register citation:** 82 FR 48431
- **CFR reference:** 40 CFR 52
- **Publication date:** 2017-10-18
- **Effective date:** 2017-12-18
- **State:** IL
- **EPA docket:** EPA-R05-OAR-2017-0082
## Abstract

The Environmental Protection Agency (EPA) is approving the regional haze progress report under the Clean Air Act (CAA) as a revision to the Illinois State Implementation Plan (SIP). Illinois has satisfied the progress report requirements of the Regional Haze Rule. Illinois has also met the requirements for a determination of the adequacy of its regional haze plan with its negative declaration submitted with the progress report.

## Source
- [Federal Register document](https://www.federalregister.gov/documents/2017/10/18/2017-22502/air-plan-approval-illinois-regional-haze-progress-report)
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