---
kind: "unit"
title: "23"
title_heading: "Highways"
key: "chIII/part1340"
level: "part"
label: "Part 1340"
heading: "Uniform Criteria for State Observational Surveys of Seat Belt Use"
release: "ecfr-current"
date: "2026-08-27"
url: "https://uscodex.org/cfr/23/chIII-part1340"
sections_count: 13
---

# Part 1340 — Uniform Criteria for State Observational Surveys of Seat Belt Use

Title 23 C.F.R. — Highways › Chapter III — National Highway Traffic Safety Administration, Department of Transportation

## Contents

- [Subpart A — General](/cfr/23/chIII-part1340-subpartA.md)
- [Subpart B — Survey Design Requirements](/cfr/23/chIII-part1340-subpartB.md)
- [Subpart C — Administrative Requirements](/cfr/23/chIII-part1340-subpartC.md)