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United States Department of Transportation
FMCSA - Federal Motor Carrier Safety Adminstration

Drug & Alcohol Clearinghouse

Learning Center / MRO

MRO

The resources below are designed to help medical review officers (MROs) understand their requirements under the Clearinghouse regulations.

Download Resources for Medical Review Officers

  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

    MROs must report positive drug tests and test refusals for DOT-required drug tests.

  4. Other Resources

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