49 C.F.R. § 40.83 How do laboratories process incoming specimens?
Title 49 - Transportation
As the laboratory, you must do the following when you receive a DOT specimen:
Title 49: Transportation
PART 40—PROCEDURES FOR TRANSPORTATION WORKPLACE DRUG AND ALCOHOL TESTING PROGRAMS
Subpart F—Drug Testing Laboratories
§ 40.83 How do laboratories process incoming specimens?
