---
kind: "section"
citation: "49 C.F.R. § 655.21"
title: "49"
number: "655.21"
heading: "Drug testing."
url: "https://uscodex.org/cfr/49/655.21"
---

# §655.21. Drug testing.

- (a) An employer shall establish a program that provides testing for prohibited drugs and drug metabolites in the following circumstances: pre-employment, post-accident, reasonable suspicion, random, and return to duty/follow-up.
- (b) When administering a drug test, an employer shall ensure that the following drugs are tested for:
  - (1) Marijuana;
  - (2) Cocaine;
  - (3) Opioids;
  - (4) Amphetamines; and
  - (5) **Phencyclidine.**
- (c) **Consumption of these products is prohibited at all times.**

## Notes

### Amendments

[66 FR 42002, Aug. 9, 2001, as amended at 84 FR 16775, Apr. 23, 2019]

### Authority

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

### Source

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

### Amendments

[66 FR 42002, Aug. 9, 2001, as amended at 84 FR 16775, Apr. 23, 2019]