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 chairman of a federal drug-testing advisory board that developed the controversial proposed mandatory guidelines for hair drug testing of truck drivers, other workers in safety-sensitive jobs and ...

Hair testing for illegal drug use has gotten a boost following a recent gathering, but it still faces a long way to go before it ever possibly replaces urine testing in trucking. The drug screening ...

Recent news has shown a cohort of Senators pressing the Department of Health and Human Services to issue technical guidance for hair-sample testing — a required first step, according to the Department ...