# Approval and Promulgation of Implementation Plans; Utah; Revisions to Utah Rule R307-107; General Requirements; Breakdowns
> **Rule** · Final rule. · Published 2014-02-06 · Effective 2014-03-10 · 79 FR 7067
## Document
- **Document number:** 2014-02079
- **Category:** air-emissions
- **Federal Register citation:** 79 FR 7067
- **CFR reference:** 40 CFR 52
- **Publication date:** 2014-02-06
- **Effective date:** 2014-03-10
- **State:** UT
- **EPA docket:** EPA-R08-OAR-2012-0746
## Abstract

EPA is approving changes to Utah's rule R307-107, which pertains to source emissions during breakdowns. Utah's prior version of rule R307-107 had several deficiencies related to the treatment of excess emissions from sources during malfunction events. On April 18, 2011, EPA finalized a rulemaking which found that the Utah State Implementation Plan (SIP) was substantially inadequate to attain or maintain the national ambient air quality standards (NAAQS) or to otherwise comply with the requirements of the Clean Air Act (CAA) because it included rule R307-107. Concurrent with this finding, EPA issued a SIP call that required the State to revise its SIP by either removing R307-107 or correcting its deficiencies, and to submit the revised SIP to EPA by November 18, 2012. On August 16, 2012, the State submitted to EPA revisions to R307-107. EPA is approving these revisions because they correct the identified SIP deficiencies concerning the treatment of excess emissions during malfunctions and, therefore, satisfy EPA's April 18, 2011 SIP call. This final approval eliminates all potential clocks for sanctions and for EPA to promulgate a federal implementation plan (FIP) related to the April 18, 2011 SIP call.

## Source
- [Federal Register document](https://www.federalregister.gov/documents/2014/02/06/2014-02079/approval-and-promulgation-of-implementation-plans-utah-revisions-to-utah-rule-r307-107-general)
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