“A driver with a drug-and-alcohol program violation is prohibited from performing safety-sensitive functions, including operating CMVs, for any DOT-regulated employer until the return-to-duty process ...

Developing high-quality, safe, and effective drugs is a complex process that requires varied scientific skills and stringent regulatory assessments. Drug development is a process that spans many years ...

Although marijuana is still a Schedule I substance and illegal under federal law, many states have legalized its use in recent years. A new Pew Research Center analysis found that more than half of ...