The American Trucking Association released a statement in October 2021, citing retiring driving veterans and lower wages as the partial cause for the shortage of more than 80,000 drivers. However, another cause for this shortage is being attributed to adult-use legalization and drivers testing positive for cannabis. A March 2022 U.S. Department of Transportation summary report … [Read more...] about Cannabis Drug Testing Partial Cause for U.S. Truck Driver Shortage. Maybe the DOT needs some help coming out of the dark ages.