Medical Review Officer Center
More than 70 percent of large private employers require drug and alcohol testing. Mandatory alcohol and drug testing is also now required of all interstate truckers, commercial driver's license holders, and other transportation workers in joint government agreements. The United States, Canada, and Mexico also monitor truckers crossing international borders.
MROs review results from drug and alcohol testing programs and evaluate medical explanations for certain results. ACOEM has long been the educational provider of choice for MROs through its online and in-person courses.