# Approval and Promulgation of Implementation Plans; Revision to the Illinois State Implementation Plan for Ozone
> **Rule** · Direct final rule. · Published 1997-08-12 · Effective 1997-10-14 · 62 FR 43100
## Document
- **Document number:** 97-21142
- **Category:** air-emissions
- **Federal Register citation:** 62 FR 43100
- **CFR reference:** 40 CFR 52
- **Publication date:** 1997-08-12
- **Effective date:** 1997-10-14
- **State:** IL
- **EPA docket:** IL137-1a
## Abstract

The EPA approves the State Implementation Plan (SIP) revision request submitted by the State of Illinois on May 14, 1996, for the purpose of making a change to the regulatory control period established for Illinois' 7.2 pounds per square inch (psi) Reid Vapor Pressure (RVP) regulations currently required for the Metro-East St. Louis (Metro-East) moderate ozone nonattainment area which includes Madison, Monroe, and St. Clair Counties. In addition, EPA is approving a correction to the identification number for the Clark Oil Company listed in Illinois' Marine Vessel Loading rule. The rationale for the approval is set forth in this direct final rule; additional information is available at the address indicated below. In the proposed rules section of this Federal Register, EPA is proposing approval of and soliciting public comment on this requested SIP revision. If adverse written comments are received on this direct final rule, EPA will withdraw this direct final rule and address the comments received in a subsequent final rule on the related proposed rule which is being published in the proposed rules section of this Federal Register. No additional opportunity for public comment will be provided. Unless this direct final rule is withdrawn no further rulemaking will occur on this requested SIP revision.

## Source
- [Federal Register document](https://www.federalregister.gov/documents/1997/08/12/97-21142/approval-and-promulgation-of-implementation-plans-revision-to-the-illinois-state-implementation-plan)
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