23 CFR § 1240.13 - Determination of national average seat belt use rate.

---
identifier: "/us/cfr/t23/s1240.13"
source: "ecfr"
legal_status: "authoritative_unofficial"
title: "23 CFR § 1240.13 - Determination of national average seat belt use rate."
title_number: 23
title_name: "Highways"
section_number: "1240.13"
section_name: "Determination of national average seat belt use rate."
chapter_name: "NATIONAL HIGHWAY TRAFFIC SAFETY ADMINISTRATION AND FEDERAL HIGHWAY ADMINISTRATION, DEPARTMENT OF TRANSPORTATION"
subchapter_number: "B"
subchapter_name: "GUIDELINES"
part_number: "1240"
part_name: "SAFETY INCENTIVE GRANTS FOR USE OF SEAT BELTS—ALLOCATIONS BASED ON SEAT BELT USE RATES"
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. 157; delegations of authority at 49 CFR 1.48 and 1.50."
regulatory_source: "63 FR 57909, Oct 29, 1998, unless otherwise noted."
cfr_part: "1240"
---


# 1240.13 Determination of national average seat belt use rate.

The national average seat belt use rate for a calendar year shall be the sum of the individual State seat belt use rates for all the States, after weighting each individual State seat belt use rate in accordance with the procedures of appendix D of this part.