Section 219.701 - Standards for drug and alcohol testing(a) Drug testing required or authorized by subparts B, D, E, F, G, and K (but only for co-worker or non-peer referrals that involve a violation of the prohibitions of this subpart) 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, E, F, G, and K (but only for co-worker or non-peer referrals that involve a violation of the prohibitions of this subpart) 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). 66 FR 41973 , Aug. 9, 2001, as amended at 81 FR 37942 , June 10, 2016