In the first monthly report of the Federal Motor Carrier Safety Administration (FMCSA) Drug and Alcohol Clearinghouse, which includes information on the number of registrations, queries conducted, violations reported and drivers in the return-to-duty (RTD) process, positive tests for marijuana use far outpaced those for other drugs. The database tracks commercial driver’s license holders who have tested positive for prohibited drug or alcohol use, as well as refusals to take required drug tests, and other drug and alcohol violations, and those that have completed the return-to-duty process. There were 10,388 positive tests reported for marijuana, compared to 3,192 for cocaine.
