The Department of Transportation plans to add four prescription opioids – hydrocodone, hydromorphone, oxymorphone and oxycodone – to the existing DOT drug-testing panel for screening truck drivers and other "safety-sensitive" transportation workers. This final rule is to take effect on Jan. 1.
Marijuana-Linked Road Deaths Up in Colorado
In 2016, Colorado drivers in fatal crashes tested positive for marijuana 20% of the time. The state voted to legalize recreational use of the drug in late 2012.