['Drug and Alcohol Testing - DOT']

['Drug testing - Motor Carrier', 'Alcohol testing - Motor Carrier', 'Medical review officer (MRO) - Motor Carrier']

04/08/2025

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REGSENSE
Topic Search
Drug and Alcohol Testing - DOT - Drug testing - Motor Carrier
Standard Interpretation

Standard Interpretation

§ 40.121 Who is qualified to act as an MRO?

RegSense English Medical review officer (MRO) - Motor Carrier Fleet Safety Drug testing - Motor Carrier Drug and Alcohol Testing - DOT Office of the Secretary of Transportation Focus Area Compliance Docs Standard Interpretation Alcohol testing - Motor Carrier Transportation USA

Question 1: Can Canadian and Mexican medical review officers (MROs) report verified positive test results and refusals to test to the Clearinghouse?

Guidance: Yes, if the MRO meets the requirements under § 40.121.

['Drug and Alcohol Testing - DOT']

['Drug testing - Motor Carrier', 'Alcohol testing - Motor Carrier', 'Medical review officer (MRO) - Motor Carrier']

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