Though a band of the country’s largest for-hire motor carriers continue to promote the benefits of screening drivers for drug use via hair sample testing over a urine sample test, a rule from the U.S.

The word “mandatory” has been batted around in headlines and social media posts the last few weeks describing long-in-the-works reforms to driver drug testing protocol. But what, exactly, will be ...

A urine drug test is used to detect the presence of illegal and prescription drugs in urine. It’s also known as a urine drug screen. In a urine drug test, a sample of urine is sent to a lab. A tester ...

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 ...