Overview of 49 CFR Part 40 The Department of Transportation's (DOT) rule, 49 CFR Part 40, describes required procedures for conducting workplace drug and alcohol testing for the Federally regulated transportation industry. • To view 49 CFR Part 40 by section and related Q&As, click on the relevant subpart below.

Drug Testing. These guidelines, together with the 49 CFR Part 40, and the DOT Operating Administration rules, with provide collectors with the information needed in the performance of their collection duties. The DOT drug and alcohol testing regulations for commercial driver licensed (CDL) employees can be found at 49 CFR Part 382, and 49 CFR Part 40. These regulations can be found at: www.fmcsa. 2000 Toyota Camry Timing Marks Pdf Editor there. dot.gov. This brochure summarizes the regulations as they apply to CDL drivers, and is intended to better educate drivers.