Resources

DOT Office of Drug and Alcohol Policy and Compliance (ODAPC)
Provides comprehensive information on DOT's drug and alcohol testing regulations and policies.
https://www.transportation.gov/odapc​

FMCSA Drug and Alcohol Testing Program
Offers an overview of drug and alcohol rules specific to commercial motor vehicle drivers and employers.
https://www.fmcsa.dot.gov/regulations/drug-alcohol-testing-program​

FMCSA Return-to-Duty Process
Details the steps required for commercial drivers to return to duty after a drug or alcohol violation.
https://www.fmcsa.dot.gov/regulations/drug-alcohol-testing/return-duty​

DOT Drug and Alcohol Testing Regulations (49 CFR Part 40)
Outlines the procedures for transportation workplace drug and alcohol testing programs.
https://www.transportation.gov/odapc/part40​

FMCSA Drug & Alcohol Clearinghouse
A secure online database that provides real-time information about CDL drivers' drug and alcohol program violations.
https://clearinghouse.fmcsa.dot.gov/​

FMCSA Substance Abuse Professional (SAP) Guidelines
Information on the role and responsibilities of SAPs in the return-to-duty process.
https://www.fmcsa.dot.gov/regulations/drug-alcohol-testing/substance-abuse-professionals

Drug and Alcohol Testing Brochure for Drivers
This brochure provides CDL drivers with an overview of DOT drug and alcohol testing rules, including the return-to-duty process.
Download PDF​

Best Practices for DOT Random Drug and Alcohol Testing
This guide outlines best practices for implementing DOT-compliant random drug and alcohol testing programs.
Download PDF​

The Return-to-Duty Process Infographic
This infographic illustrates the steps involved in the return-to-duty process and how they are recorded in the FMCSA Drug & Alcohol Clearinghouse.
Download PDF​