From 7:30 p.m. Eastern Time on Friday, April 16, 2021 to 7:30 a.m. Eastern Time on Monday, April 19, 2021, TENNESSEE commercial driver’s licenses (CDLs) may not be verified in the Clearinghouse, due to scheduled system maintenance with the Tennessee Commercial Driver License Information System (CDLIS).
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United States Department of Transportation
FMCSA - Federal Motor Carrier Safety Adminstration

Drug & Alcohol Clearinghouse

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.

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.

Read More

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.

  • Record
  • Consent
  • Query
  • Safety

Learn More

How will you use the Drug and Alcohol Clearinghouse?

Watch this brief video to learn more about how different users will record or access information in the Clearinghouse.

How will you use the Drug and Alcohol Clearinghouse?

By fulfilling the requirements listed in the Clearinghouse final rule, you are helping keep our Nation’s roadways safer for all drivers. Watch this brief video to learn more about how different users will record or access information in the Clearinghouse.

Learn More

FMCSA has developed several Clearinghouse factsheets, brochures, and instructional guides, customized by user type. Visit the Learning Center to access these resources.

Need more information about the Clearinghouse?

Read answers to frequently asked questions. If you need additional information, you can contact us.