# Approval and Promulgation of Air Quality Implementation Plans; State of Utah; Vehicle Inspection and Maintenance Programs; Salt Lake County and General Requirements and Applicability
> **Rule** · Final rule. · Published 2002-10-09 · 67 FR 62891
## Document
- **Document number:** 02-25588
- **Category:** air-emissions
- **Federal Register citation:** 67 FR 62891
- **CFR reference:** 40 CFR 52
- **Publication date:** 2002-10-09
- **State:** UT
- **EPA docket:** UT-001-0038, UT-001-0039, UT-001-0040
## Abstract

On March 21, 2002, EPA published a notice of proposed rulemaking (NPR) that proposed approval of revisions to Utah's state air quality implementation plan (SIP). The revisions update Utah's vehicle inspection and maintenance (I/M) programs. On August 14, 2001 and on August 15, 2001, the Governor of Utah submitted revisions to the SIP affecting the State's motor vehicle I/M programs. The August 14, 2001, submittal revised Utah's Rule R307-110-33, which incorporates by reference Section X, Vehicle Inspection and Maintenance Program, Part C, Salt Lake County to allow Salt Lake County to take 100% credit for their test and repair vehicle I/M network, rather than the previously required EPA default of a 50% emissions reduction credit. The August 15, 2001, submittal revises Utah's Rule R307-110-31, which incorporates by reference Section X, Vehicle Inspection and Maintenance Program, Part A, General Requirements and Applicability to require mandatory implementation of the inspection of vehicle On-Board Diagnostic (OBD) systems starting January 1, 2002. In this action, EPA is approving the revisions to Utah's Rule R307-110-33 and Rule R307-110-31.

## Source
- [Federal Register document](https://www.federalregister.gov/documents/2002/10/09/02-25588/approval-and-promulgation-of-air-quality-implementation-plans-state-of-utah-vehicle-inspection-and)
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