---
kind: "section"
citation: "49 C.F.R. § 40.93"
title: "49"
number: "40.93"
heading: "What validity tests must laboratories conduct on primary oral fluid specimens?"
url: "https://uscodex.org/cfr/49/40.93"
---

# §40.93. What validity tests must laboratories conduct on primary oral fluid specimens?


As a laboratory, if you conduct validity testing under [§ 40.92](/cfr/49/40.92.md), you must conduct it in accordance with the requirements of this section.

- (a) You may test for a biomarker such as albumin or immunoglobulin G (IgG) or a test for a specific adulterant.
- (b) You must follow the applicable HHS requirements for any additional validity testing.

## Notes

### Amendments

[88 FR 27643, May 2, 2023]

### 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.

### Amendments

[88 FR 27643, May 2, 2023]