MRO review protects against false positives from legitimate prescriptions. DOT-qualified Medical Review Officers verify every result while SAP coordination manages the return-to-duty process for confirmed violations.
Reporting a positive drug test without proper Medical Review Officer (MRO) verification violates DOT regulations and exposes carriers to wrongful termination lawsuits. Drivers with legitimate prescriptions for controlled medications must have their results reviewed by a qualified physician who understands both the medical and regulatory aspects of drug testing.
Diversified Drug Testing partners with a network of DOT-qualified MROs who review every non-negative result. The MRO contacts the driver confidentially to review prescription medications, determines whether there is a legitimate medical explanation, and reports only verified positive results to employers. This process protects driver rights while maintaining safety.
When violations are confirmed, our SAP coordination ensures drivers receive proper evaluation and treatment. We connect drivers with qualified Substance Abuse Professionals, track treatment completion, and coordinate the return-to-duty process—including Clearinghouse reporting at every milestone.
Licensed physicians with specific DOT qualifications review every non-negative result per federal requirements.
MROs contact drivers directly and confidentially to verify prescription medications before making determinations.
Confirmed violations are connected with qualified Substance Abuse Professionals for evaluation and treatment.
All violations and RTD milestones are properly reported to the FMCSA Clearinghouse within required timeframes.
49 CFR Part 40, Subpart G requires all non-negative drug test results be reviewed by a Medical Review Officer (MRO)—a licensed physician with specific DOT qualifications. The MRO must:
An MRO is a licensed physician who reviews and verifies drug test results. For any non-negative result, the MRO contacts the driver to review prescription medications and determine if there is a legitimate medical explanation. Only verified positive results are reported to the employer.
The MRO typically completes review within 3-5 business days of receiving a non-negative laboratory result. The MRO must make reasonable attempts to contact the driver before finalizing any determination.
Once a positive is verified, the result is reported to the FMCSA Clearinghouse and the driver must complete SAP evaluation before returning to safety-sensitive duties. Diversified Drug Testing coordinates the entire return-to-duty process.
Yes. MRO review is available for specimens collected by other providers when needed. Contact us to coordinate MRO review for client-collected specimens.
Join the Diversified Drug Testing consortium and gain access to DOT-compliant random testing plus exclusive member discounts on DOT physicals, mobile and clinic drug testing, breath alcohol testing, and fit-for-duty evaluations.
DOT regulations prohibit dispatching a driver without a verified negative pre-employment drug test. Access 3,000+ collection locations or schedule mobile testing at your location with MRO-verified results typically within 24-72 hours.
Missing post-accident testing deadlines compromises insurance claims and triggers federal violations. 24/7 collector dispatch ensures you meet the 8-hour alcohol and 32-hour drug testing requirements.
Contact our testing specialists to learn how we can support your drug and alcohol testing program.