Medical Review Officer

Promoting and Preserving the Highest Quality of Standards Among MROs and Their Teams.


The final 2022 issue of the MROCC Quarterly Newsletter has been published. Contributors to our Newsletter are some of the most well-known and experienced experts in the field of drug testing. We want to thank them all for their efforts, and to invite submissions from our readership of thoughts, questions, papers and comments that would be of general interest to MROs in all aspects of MRO responsibility and the review of laboratory results.

The newsletter is available through the MROCC website for those certified by MROCC or those who have subscribed to the newsletter. Further information about the newsletter is available


The Medical Review Officer (MRO) field is complex and rapidly evolving due to technical advances, regulatory changes, and new patterns of abuse. Testing for substances of abuse is now the rule rather than the exception in settings as diverse as the workplace, the doctor's office, and many schools throughout the country. The Drug-Free Workplace Act affects all federal agencies. Mandatory alcohol and drug testing is now required of all intrastate truckers, commercial driver's license holders, and other transportation workers. Joint government agreements between the United States, Canada, and Mexico monitor truckers crossing international borders. Federal regulations require MRO qualification and re-qualification training followed by certification and recertification by a nationally recognized Medical Review Officer Certification board every 5 years.

  • MRO Drug Testing


    Registration and Examination

    MROCC Medical Review Officer certification is DOT and SAMHSA recognized and approved. The exams are based on 49 Code of Federal Regulations (CFR Part 40) and the MRO Competencies Document. As mandated by the DOT, Medical Review Officer certification is valid for five years, at which time recertification is required to remain within DOT compliance and in the directory of currently-certified MROs.

  • MRO



    MROCC offers certification and recertification examinations in both online and onsite formats to physicians who have completed appropriate Medical Review Officer training. MROCC-approved onsite MRO courses are given multiple times per year and are required for initial certification. A convenient, no-travel, CME activity is available for those who are recertifying.