---
kind: "section"
citation: "49 C.F.R. § 40.1"
title: "49"
number: "40.1"
heading: "Who does this regulation cover?"
url: "https://uscodex.org/cfr/49/40.1"
---

# §40.1. Who does this regulation cover?

- (a) This part tells all parties who conduct drug and alcohol tests required by Department of Transportation (DOT) agency regulations how to conduct these tests and what procedures to use.
- (b) This part concerns the activities of transportation employers, safety-sensitive transportation employees (including self-employed individuals, contractors and volunteers as covered by DOT agency regulations), and service agents.
- (c) Nothing in this part is intended to supersede or conflict with the implementation of the Federal Railroad Administration's post-accident testing program (see [49 CFR 219.200](/cfr/49/219.200.md)).

## Notes

### Authority

Authority: 49 U.S.C. 102, 301, 322, 5331, 20140, 31306, and 54101 et seq.

### Source

Source: 65 FR 79526, Dec. 19, 2000, unless otherwise noted.