Subpart F - DRUG TESTING LABORATORIES

Section 40.81 - What laboratories may be used for DOT drug testing?
Section 40.82 - What drugs do laboratories test for?
Section 40.83 - How do laboratories process incoming specimens?
Section 40.84 - How long does the laboratory retain specimens after testing?
Section 40.85 - What are the cutoff concentrations for urine drug tests?
Section 40.86 - What is urine validity testing, and are laboratories required to conduct it?
Section 40.87 - What validity tests must laboratories conduct on primary urine specimens?
Section 40.88 - What criteria do laboratories use to establish that a urine specimen is dilute or substituted?
Section 40.89 - What are the adulterant cutoff concentrations for initial and confirmation urine tests?
Section 40.90 - What criteria do laboratories use to establish that a urine specimen is invalid?
Section 40.91 - What are the cutoff concentrations for oral fluid drug tests?
Section 40.92 - What is oral fluid validity testing, and are laboratories required to conduct it?
Section 40.93 - What validity tests must laboratories conduct on primary oral fluid specimens?
Section 40.97 - What do laboratories report and how do they report it?
Section 40.101 - What relationship may a laboratory have with an MRO?
Section 40.103 - Removed
Section 40.105 - Removed
Section 40.107 - Who may inspect laboratories?
Section 40.109 - What documentation must the laboratory keep, and for how long?
Section 40.111 - When and how must a laboratory disclose statistical summaries and other information it maintains?
Section 40.113 - Where is other information concerning laboratories found in this regulation?