# Approval, Disapproval and Promulgation of Air Quality Implementation Plan; Utah; Maintenance Plan for the 1-Hour Ozone Standard for Salt Lake and Davis Counties
> **Rule** · Final rule. · Published 2012-06-15 · Effective 2012-07-16 · 77 FR 35873
## Document
- **Document number:** 2012-14668
- **Category:** air-emissions
- **Federal Register citation:** 77 FR 35873
- **CFR reference:** 40 CFR 52
- **Publication date:** 2012-06-15
- **Effective date:** 2012-07-16
- **State:** UT
- **EPA docket:** EPA-R08-OAR-2011-0719
## Abstract

EPA is partially approving and partially disapproving State Implementation Plan (SIP) revisions submitted by the Governor of Utah on February 22, 1999. These revisions updated the State of Utah's maintenance plan for the 1-hour ozone standard for Salt Lake County and Davis County. As part of this action, EPA is also addressing certain actions it took in 2003 concerning such maintenance plan. This action is being taken under section 110 of the Clean Air Act (CAA).

## Source
- [Federal Register document](https://www.federalregister.gov/documents/2012/06/15/2012-14668/approval-disapproval-and-promulgation-of-air-quality-implementation-plan-utah-maintenance-plan-for)
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