Clearinghouse users may not be able verify driver CDL information due to intermittent issues with the Commercial Driver Licensing Information System (CDLIS) Gateway. FMCSA's IT Team is aware of the issue and will resolve it as soon as possible.
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United States Department of Transportation
FMCSA - Federal Motor Carrier Safety Adminstration

Drug & Alcohol Clearinghouse

Learning Center / SAP

SAP

The resources below are designed to help Substance Abuse Professionals (SAPs) understand their requirements under the Clearinghouse regulations.

Download Resources for Substance Abuse Professionals

  1. About the Clearinghouse

    Learn about the Clearinghouse

  2. Registration

    Visit the Before You Register page to make sure you understand the registration process.

    Registration instructions:

  3. Violations and the RTD Process

    SAPs must report certain driver information about the return-to-duty (RTD) process in the Clearinghouse.

  4. Other Resources

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