49 C.F.R. § 655.52 Substance abuse professional (SAP).
Title 49 - Transportation
The SAP must perform the functions in 49 CFR Part 40.
Title 49: Transportation
PART 655—PREVENTION OF ALCOHOL MISUSE AND PROHIBITED DRUG USE IN TRANSIT OPERATIONS
Subpart F—Drug and Alcohol Testing Procedures
§ 655.52 Substance abuse professional (SAP).