Before You Register
Do you need help with registration?
Identify your Clearinghouse user role and find out what you will need to complete your registration.
Welcome to the Drug and Alcohol Clearinghouse
An online database that gives employers and government agencies real-time access to information about CDL driver drug and alcohol program violations.
Learn More
- Find Answers to Commonly Asked Questions Read FAQs
- Download Resources and Job Aids Visit the Learning Center
- Learn About Purchasing Query Plans Get Pricing Info
- Get the Latest from FMCSA Sign Up for Email Updates
- Clearinghouse Activity Read Monthly Summary Reports
Clearinghouse Status and CDL Downgrades
As of November 18, 2024, having a "prohibited" Clearinghouse status will result in losing or being denied a commercial driver's license (CDL) or commercial learner's permit (CLP). Read more about how a driver's Clearinghouse status affects CDL eligibility.
Drivers in a "prohibited" Clearinghouse status must complete the return-to-duty (RTD) process to become eligible for a CDL or CLP. Learn about the steps a driver takes to get back to being "not prohibited".
Learn more: Read the second Clearinghouse final rule.
Return-to-Duty for CDL Drivers
CDL and CLP holders that have a “prohibited” status in FMCSA’s CDL Drug and Alcohol Clearinghouse will lose their commercial driving privileges until the driver completes the return-to-duty process. This video summarizes the steps these drivers have to take to change their Clearinghouse status back to “not prohibited.”
Need more information about the Clearinghouse?
Read answers to frequently asked questions. If you need additional information, you can contact us.