23 CFR § 1340.12 - Re-selection of observation sites.

---
identifier: "/us/cfr/t23/s1340.12"
source: "ecfr"
legal_status: "authoritative_unofficial"
title: "23 CFR § 1340.12 - Re-selection of observation sites."
title_number: 23
title_name: "Highways"
section_number: "1340.12"
section_name: "Re-selection of observation sites."
chapter_name: "NATIONAL HIGHWAY TRAFFIC SAFETY ADMINISTRATION, DEPARTMENT OF TRANSPORTATION"
part_number: "1340"
part_name: "UNIFORM CRITERIA FOR STATE OBSERVATIONAL SURVEYS OF SEAT BELT USE"
positive_law: false
currency: "2026-03-24"
last_updated: "2026-03-24"
format_version: "1.1.0"
generator: "[email protected]"
authority: "23 U.S.C. 402; delegation of authority at 49 CFR 1.50."
regulatory_source: "76 FR 18056, Apr. 1, 2011, unless otherwise noted."
cfr_part: "1340"
---


# 1340.12 Re-selection of observation sites.

(a) *Re-selection of observation sites.* States shall re-select observation sites using updated sampling frame data, as described in § 1340.5(a), no less than once every five years.

(b) *Re-selection submission deadline.* States shall submit updated sampling frame data meeting the requirements of § 1340.5(a) for NHTSA approval no later than March 1 of the re-selection year.