New Study Finds Gaping Hole in DOT Drug Testing Results

The US Dept. of Transportation (DOT) prohibits commercial truck drivers, airline pilots, train engineers, and other safety-sensitive occupations from using illegal drugs, whether on-duty or off-duty. But DOT’s testing method, a urinalysis, is missing 90% of the actual drug users, according to a new study of nearly 1 million truck driver drug test results between 2017 and 2022.