Subpart F - Drug Testing Laboratories

40.79	How is the collection process completed?
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 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 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?
40.96	What criteria do laboratories use to establish that a specimen is invalid?
40.97	What do laboratories report and how do they report it?
40.99	§How long does the laboratory retain specimens after testing?
40.101	What relationship may a laboratory have with an MRO?
40.103	Removed
40.105	Removed
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	Removed