You thought that wild weekend from months ago was ancient history? Think again. While blood tests only catch drug use from the past few days and urine tests stretch to maybe a few weeks, there’s a ...
Some 300,000 truck drivers would fail a hair test for drugs, says the Trucking Alliance – but most of those would pass the DOT-required urine test. A university study holds that a survey of the paired ...
New research validates a study that almost 300,000 truck drivers would fail a hair test for drug use today, according to The Alliance for Driver Safety and Security, which did the original study and ...
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