# Air Plan Approval; Illinois; Revised Format for Materials Incorporated by Reference
> **Rule** · Final rule; administrative change. · Published 2017-06-30 · Effective 2017-06-30 · 82 FR 30636
## Document
- **Document number:** 2017-13659
- **Category:** other
- **Federal Register citation:** 82 FR 30636
- **CFR reference:** 40 CFR 52
- **Publication date:** 2017-06-30
- **Effective date:** 2017-06-30
- **State:** IL
- **EPA docket:** EPA-R05-OAR-2016-0599
## Abstract

The Environmental Protection Agency (EPA) is revising the format for materials that are made part of the Illinois State Implementation Plan (SIP) through the process of incorporation by reference (IBR). The regulations and materials affected by this format change have all been previously submitted by Illinois and approved by EPA as part of the SIP.

## Source
- [Federal Register document](https://www.federalregister.gov/documents/2017/06/30/2017-13659/air-plan-approval-illinois-revised-format-for-materials-incorporated-by-reference)
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