The U.S. Department of Transportation (DOT) is advising that all safety-sensitive workers must still comply with federal drug ...

"This risk is exacerbated by the fact that there is currently no proven, widely accepted standard to determine marijuana ...

The legislation introduces oral fluid testing, which allows officers to use cotton swabs to test for drug impairment during ...

[Stay on top of transportation news: Get TTNews in your inbox.] Motor carriers must continue to conduct random drug tests with 50% of their truck drivers and random alcohol tests with 10% of their ...

According to a recent study conducted by Quest Diagnostics (NYSE: DGX), drug use among American employees, as measured by the percentage of employees who tested positive in urine drug tests, is at a ...

When applying for some jobs, offers may be contingent on passing a drug test, while other companies require their employees to pass drug screens regularly. Marijuana is among the most commonly tested ...