Code of Federal Regulations > 49 CFR Department of Transportation > A Office of the Secretary > 40 Procedures For Transportation...

Login required to View Regulations

Sign In or Register Now. Registration is fast and free!

Subpart F — Drug Testing Laboratories

§40.81 — What laboratories may be used for DOT drug testing?

§40.82 — What drugs do laboratories test for?

§40.83 — How do laboratories process incoming specimens?

§40.84 — How long does the laboratory retain specimens after testing?

§40.85 — What are the cutoff concentrations for urine drug tests?

§40.86 — What is urine validity testing, and are laboratories required to conduct it?

§40.87 — What validity tests must laboratories conduct on primary urine specimens?

§40.88 — What criteria do laboratories use to establish that a urine specimen is dilute or substituted?

§40.89 — What are the adulterant cutoff concentrations for initial and confirmation urine tests?

§40.90 — What criteria do laboratories use to establish that a urine specimen is invalid?

§40.91 — What are the cutoff concentrations for oral fluid drug tests?

§40.92 — What is oral fluid validity testing, and are laboratories required to conduct it?

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

§40.97 — What do laboratories report and how do they report it?

§40.101 — What relationship may a laboratory have with an MRO?

§40.107 — Who may inspect laboratories?

§40.109 — What documentation must the laboratory keep, and for how long?

§40.111 — When and how must a laboratory disclose statistical summaries and other information it maintains?

§40.113 — Where is other information concerning laboratories found in this regulation?