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 impairment at the roadside or before a driver begins operating a vehicle, ...

From how the process actually works, to what it means for travel, drug testing, buying at dispensaries and more.

Feb. 14—A licensed cannabis testing laboratory accused of transporting marijuana across state lines and falsifying data has been ordered to cease operations — at least temporarily. A state district ...

Cannabis regulators have ordered one of the state’s independent testing labs to suspend operations, alleging a “pattern of failing to accurately report” marijuana test results and “an intentional ...

This holiday season, police departments across the country will repeat their laudable annual efforts to deter drunken driving. Yet more than a decade after states began legalizing recreational ...

Three recalls tied to the same cannabis producer are raising questions about transparency and regulatory follow-through.

A Denver district court judge ruled against a cannabis cultivator’s request to force Colorado to immediately overhaul the state’s cannabis testing rules and seemed ready to rule for a complete ...

Moving cannabis to a category of drugs that includes some common medicines will have implications for research, businesses ...

Forbes contributors publish independent expert analyses and insights. Alonzo Martinez reports on employment laws and trends in HR tech. H.R. 5371 reflects the fragmented state of U.S. cannabis policy.

Wayne State University researchers will evaluate how cannabis treatments affect mood, mental health and overall well-being in ...