# Approval and Promulgation of Air Quality Implementation Plans; Connecticut; 15 Percent Rate-of-Progress and Contingency Plans
> **Rule** · Final rule. · Published 1999-03-10 · Effective 1999-05-10 · 64 FR 12015
## Document
- **Document number:** 99-2980
- **Category:** air-emissions
- **Federal Register citation:** 64 FR 12015
- **CFR reference:** 40 CFR 52
- **Publication date:** 1999-03-10
- **Effective date:** 1999-05-10
- **State:** CT
- **EPA docket:** CT-7209a
## Abstract

EPA is approving State Implementation Plan (SIP) revisions submitted by the State of Connecticut. These revisions establish 15 percent rate-of-progress (ROP) and contingency plans for ozone nonattainment areas in the State. The intended effect of this action is to approve these plans in accordance with the Clean Air Act.

## Source
- [Federal Register document](https://www.federalregister.gov/documents/1999/03/10/99-2980/approval-and-promulgation-of-air-quality-implementation-plans-connecticut-15-percent)
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