Drug violations for truck drivers increased 10.2% in 2021 over 2020 in the first full-year data comparison compiled by the federal Drug & Alcohol Clearinghouse.
While the number of actual positive drug tests increased only 3.1% to 55,223 (refusing to take a test is also considered a violation), a year-to-year comparison of 15 drug categories within the Federal Motor Carrier Safety Administration-run clearinghouse revealed that positive tests for cocaine and marijuana increased 10.4% (7,940 to...
https://www.freightwaves.com/news/fmcsa-reported-drug-test-violations-grew-10-in-2021