§FMCSR.com
Historical textIn force on June 11, 2018Source: eCFR

§ 40.85 What drugs do laboratories test for?

Wording effective January 1, 2018, superseded May 2, 2023.

eCFR as of June 11, 2018 ↗
49 CFR § 40.85 — What drugs do laboratories test for?. Text in force on June 11, 2018. This wording effective January 1, 2018 to May 2, 2023. Source: eCFR as of June 11, 2018, https://www.ecfr.gov/on/2018-06-11/title-49/section-40.85. Retrieved from FMCSR.com, https://fmcsr.com/reg/40.85?asof=2018-06-11, on October 26, 2026. Unofficial compilation; verify against the official source.

As a laboratory, you must test for the following five drugs or classes of drugs in a DOT drug test. You must not test “DOT specimens” for any other drugs.

(a) Marijuana metabolites.

(b) Cocaine metabolites.

(c) Amphetamines.

(d) Opioids.

(e) Phencyclidine (PCP).

[82 FR 52244, Nov. 13, 2017]

Amendment history

5 distinct wordings on file since Oct. 1, 2001
  1. June 1, 2023 → presenteCFR, day-precisediff vs. previous
    [65 FR 79526, Dec. 19, 2000, as amended at 75 FR 49862, Aug. 16, 2010; 77 FR 26473, May 4, 2012; 82 FR 52244, Nov. 13, 2017. Redesignated and amended at 88 FR 27643, May 2, 2023]
  2. May 2, 2023 → June 1, 2023eCFR, day-precisediff vs. previous
    [82 FR 52244, Nov. 13, 2017]
  3. Jan. 1, 2018 → May 2, 2023eCFR, day-precisediff vs. previousviewing
    [82 FR 52244, Nov. 13, 2017]
  4. Nov. 13, 2017 → Jan. 1, 2018eCFR, day-precisediff vs. previous
  5. Oct. 1, 2001 → Nov. 13, 2017annual editions 2001–2016

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.