49 C.F.R. § 219.701 Standards for drug and alcohol testing.
Title 49 - Transportation
(a) Drug testing required or authorized by subparts B, D, F, and G of this part must be conducted in compliance with all applicable provisions of the Department of Transportation Procedures for Transportation Workplace Drug and Alcohol Testing Programs (part 40 of this title). (b) Alcohol testing required or authorized by subparts B, D, F, and G of this part must be conducted in compliance with all applicable provisions of the Department of Transportation Procedures for Transportation Workplace Drug and Alcohol Testing Programs (part 40 of this title). (c) Each covered employee who is notified of selection for testing and who is not performing covered service at the time of notification must proceed to the testing site immediately. The railroad must ensure that an employee who is performing covered service at the time of notification shall, as soon as possible without affecting safety, cease to perform covered service and proceed to the testing site.
Title 49: Transportation
PART 219—CONTROL OF ALCOHOL AND DRUG USE
Subpart H—Drug and Alcohol Testing Procedures
§ 219.701 Standards for drug and alcohol testing.
