49 CFR 40.47
Where does an oral fluid collection for a DOT drug test take place?
(a) An oral fluid collection for a DOT drug test must take place in a collection site meeting the requirements of this section.
(b) If you are operating an oral fluid collection site:
(1) You must ensure that it meets the security requirements of § 40.48;
(2) The site may be a permanent or temporary facility located either at the work site or at a remote site;
(3) The site may be in a medical facility, a mobile facility ( e.g., a van), a dedicated collection facility, or any other location meeting the requirements of this section; and
(4) You must have all necessary personnel, materials, equipment, and facilities that include privacy and supervision to provide for the collection, temporary storage, and shipping of specimens to a laboratory, and a suitable clean surface for writing.
(c) If a collection site is not accessible and there is an immediate requirement to collect an oral fluid specimen ( e.g., an accident investigation), another site may be used for the collection, if the collection is performed by a collector who has been trained to collect oral fluid specimens in accordance with this part and the manufacturer's procedures for the collection device.
[88 FR 27640, May 2, 2023]