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Reading the regulations as they stood on June 1, 2015. Current text may differ.Switch to current
Current textIn force on June 1, 2015Source: annual CFR editions 2012–2016

§ 382.201 Alcohol concentration.

Current wording, in the annual edition revised as of Oct. 1, 2012.

govinfo, 2014 edition ↗
Before Jan. 1, 2017 the record is one snapshot per annual CFR edition, revised as of October 1. This is the 2014 edition's wording. An amendment that took effect between Oct. 1, 2014 and June 1, 2015 would not appear until the next edition, so check the citations below and the Federal Register for exact effective dates.
What changedOct. 1, 1996 wording → Oct. 1, 2012 wording (current)+15 added−1 removedHide

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 actual 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]

49 CFR § 382.201 — Alcohol concentration.. Text in force on June 1, 2015. This wording effective October 1, 2012 to present. Source: govinfo, 2014 edition, https://www.govinfo.gov/app/details/CFR-2014-title49-vol5/CFR-2014-title49-vol5-sec382-201. Retrieved from FMCSR.com, https://fmcsr.com/reg/382.201?asof=2015-06-01, on October 26, 2026. Unofficial compilation; verify against the official source.

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]

Amendment history

2 distinct wordings on file since Oct. 1, 1996
  1. Oct. 1, 2012 → presentannual editions 2012–2016diff vs. previousviewing
    [66 FR 43103, Aug. 17, 2001, as amended at 77 FR 4483, Jan. 30, 2012]
  2. Oct. 1, 1996 → Oct. 1, 2012annual editions 1996–2011

A new entry appears whenever the regulatory words change between government snapshots. Day-precise from the eCFR (2017 onward); before that, one snapshot per annual CFR edition (revised as of October 1). Bracketed citations are the Federal Register history printed with the section.