49 CFR § 382.201 - Alcohol concentration.

---
identifier: "/us/cfr/t49/s382.201"
source: "ecfr"
legal_status: "authoritative_unofficial"
title: "49 CFR § 382.201 - Alcohol concentration."
title_number: 49
title_name: "Transportation"
section_number: "382.201"
section_name: "Alcohol concentration."
chapter_name: "FEDERAL MOTOR CARRIER SAFETY ADMINISTRATION, DEPARTMENT OF TRANSPORTATION"
subchapter_number: "B"
subchapter_name: "FEDERAL MOTOR CARRIER SAFETY REGULATIONS"
part_number: "382"
part_name: "CONTROLLED SUBSTANCES AND ALCOHOL USE AND TESTING"
positive_law: false
currency: "2026-04-05"
last_updated: "2026-04-05"
format_version: "1.1.0"
generator: "[email protected]"
authority: "49 U.S.C. 31133, 31136, 31301 , 31502; sec. 32934 of Pub. L. 112-141, 126 Stat. 405, 830; and 49 CFR 1.87."
regulatory_source: "66 FR 43103, Aug. 17, 2001, unless otherwise noted."
cfr_part: "382"
---


# 382.201 Alcohol concentration.

No driver shall report for duty or remain on duty requiring the performance of safety-sensitive functions while having an alcohol concentration of 0.04 or greater. No employer having knowledge that a driver has an alcohol concentration of 0.04 or greater shall permit the driver to perform or continue to perform safety-sensitive functions.

[66 FR 43103, Aug. 17, 2001, as amended at 77 FR 4483, Jan. 30, 2012]