Truck Driver Positive Tests for Marijuana Up 9.2% in Q1
Since the Clearinghouse opened in January of 2021, 110,856 drivers have tested positive for marijuana. (KLH49/GettyImages) The number of truck drivers testing positive for marijuana use increased 9.2% the first three months of 2023, and a large number of those who failed their tests are not enrolling in the return-to-work program, according to federal Drug ...more