49 C.F.R. § 40.165
To whom does the MRO transmit reports of drug test results?
Cite as 49 C.F.R. § 40.165 (2026)
(a) As the MRO, you must report all drug test results to the DER, except in the circumstances provided for in § 40.345 . (b) If the employer elects to receive reports of results through a C/TPA, acting as an intermediary as provided in § 40.345 , you must report the results through the designated C/TPA.
- Cross-references to the CFR
- 40.345