# Uniform Criteria for State Observational Surveys of Seat Belt Use
> **US Department of Transportation** · Final rule. · Published 2012-04-05 · Effective 2012-04-05 · 77 FR 20550
## Document
- **Document number:** 2012-8137
- **Category:** other
- **Sub-agency:** US Department of Transportation
- **Federal Register citation:** 77 FR 20550
- **CFR reference:** 23 CFR 1340
- **Publication date:** 2012-04-05
- **Effective date:** 2012-04-05
- **DOT docket:** Docket No. NHTSA-2010-0002
## Abstract

This final rule amends the implementation date for use of the revised uniform criteria for State Observational Surveys of Seat Belt Use. With this change, States may continue in calendar year 2012 to use a survey design that was approved under the old uniform criteria or, at their election, use a survey design approved under the revised uniform criteria. In calendar year 2013, all States must use a survey design approved under the revised uniform criteria.

## Source
- [Federal Register document](https://www.federalregister.gov/documents/2012/04/05/2012-8137/uniform-criteria-for-state-observational-surveys-of-seat-belt-use)
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