§FMCSR.com
Current textIn force on Nov. 27, 2023Source: eCFR

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

Current wording, effective June 1, 2023.

eCFR as of November 27, 2023 ↗
49 CFR § 40.93 — What validity tests must laboratories conduct on primary oral fluid specimens?. Text in force on November 27, 2023. This wording effective June 1, 2023 to present. Source: eCFR as of November 27, 2023, https://www.ecfr.gov/on/2023-11-27/title-49/section-40.93. Retrieved from FMCSR.com, https://fmcsr.com/reg/40.93?asof=2023-11-27, on October 26, 2026. Unofficial compilation; verify against the official source.

As a laboratory, if you conduct validity testing under § 40.92, 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.

[88 FR 27643, May 2, 2023]

Amendment history

5 distinct wordings on file since Oct. 1, 1996
  1. June 1, 2023 → presenteCFR, day-precisediff vs. previousviewing
    [88 FR 27643, May 2, 2023]
  2. May 2, 2023 → June 1, 2023eCFR, day-precisediff vs. previous
    [69 FR 64867, Nov. 9, 2004]
  3. Oct. 1, 2005 → May 2, 2023annual editions 2005–2016diff vs. previous
    [69 FR 64867, Nov. 9, 2004]
  4. Oct. 1, 2001 → Oct. 1, 2005annual editions 2001–2004diff vs. previous
  5. Oct. 1, 1996 → Oct. 1, 2001annual editions 1996–2000

A new entry appears whenever the regulatory words change between government snapshots. Day-precise from the eCFR (2017 onward); before that, one snapshot per annual CFR edition (revised as of October 1). Bracketed citations are the Federal Register history printed with the section.