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What are a medical review officer’s (MRO) responsibilities for reporting information to the Clearinghouse?

Within two business days of making a determination or verification of a DOT-approved drug test, a MRO must report the following driver information to the Clearinghouse:

  • Verified positive drug test results; or
  • Refusal-to-test determinations based on the employee’s inability to provide a sufficient specimen for testing, or the adulteration or substitution of a specimen.

Last Updated : January 23, 2017
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