Hair follicle drug tests involve removing a small hair sample for laboratory testing. Results can show if a person has been using certain drugs or prescription medications in the previous 3 months. It ...

The Substance Abuse and Mental Health Services Administration (SAMHSA), U.S. Department of Health and Human Services (DHHS), proposed scientific and technical guidelines for hair drug testing in ...

Fleets that have implemented hair testing for illegal drugs in addition to the DOT-mandated urine testing for commercial truck drivers say not only is it the right thing to do, but it also offers ...

J.B. Hunt is one of several carriers petitioning the FMCSA to allow hair-testing results in lieu of urinalysis to comply with pre-employment drug testing regulations for truck drivers. Photo: ...