---
kind: "section"
citation: "49 C.F.R. § 655.31"
title: "49"
number: "655.31"
heading: "Alcohol testing."
url: "https://uscodex.org/cfr/49/655.31"
---

# §655.31. Alcohol testing.

- (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.
- (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.

## Notes

### Authority

Authority: 49 U.S.C. 5331 (as amended); 49 CFR 1.91

### Source

Source: 66 FR 42002, Aug. 9, 2001, unless otherwise noted.