23 CFR § 1225.1 - Scope.

---
identifier: "/us/cfr/t23/s1225.1"
source: "ecfr"
legal_status: "authoritative_unofficial"
title: "23 CFR § 1225.1 - Scope."
title_number: 23
title_name: "Highways"
section_number: "1225.1"
section_name: "Scope."
chapter_name: "NATIONAL HIGHWAY TRAFFIC SAFETY ADMINISTRATION AND FEDERAL HIGHWAY ADMINISTRATION, DEPARTMENT OF TRANSPORTATION"
subchapter_number: "B"
subchapter_name: "GUIDELINES"
part_number: "1225"
part_name: "OPERATION OF MOTOR VEHICLES BY INTOXICATED PERSONS"
positive_law: false
currency: "2026-04-05"
last_updated: "2026-04-05"
format_version: "1.1.0"
generator: "[email protected]"
authority: "23 U.S.C. 163; sec. 351, Pub. L. 106-346—Appendix, 114 Stat. 1356A-34, 35; delegation of authority at 49 CFR 1.48 and 1.50."
regulatory_source: "68 FR 50708, Aug. 22, 2003, unless otherwise noted."
cfr_part: "1225"
---


# 1225.1 Scope.

This part prescribes the requirements necessary to implement 23 U.S.C. 163, which encourages States to enact and enforce 0.08 BAC *per se* laws through the use of incentive grants and Section 351 of Public Law 106-346—Appendix, which requires the withholding of Federal-aid highway funds from any State that has not enacted and is not enforcing a 0.08 BAC *per se* law as described in 23 U.S.C. 163.