StacksVerified U.S. regulatory reference

49 CFR §655.31

Verified against eCFR.gov as of June 20, 2026View official text on eCFR.gov ↗
  1. (a)An employer shall establish a program that provides for testing for alcohol in the following circumstances: post-accident, reasonable suspicion, random, and return to duty/follow-up. An employer may also conduct pre-employment alcohol testing.
  2. (b)Each employer shall prohibit a covered employee, while having an alcohol concentration of 0.04 or greater, from performing or continuing to perform a safety-sensitive function.