Quest Diagnostics’ annual drug testing data for 2016 revealed the highest rate of positive workforce drug tests in 12 years. Given the persistent opioid epidemic, this may not sound surprising. Except, the data show that the increase in positive drug screens were not attributed to heroin or prescription opioids, where rates remained stable or dropped. Instead, there were increases in positive drug screens for cocaine, marijuana, and methamphetamines. Notably, the data reflected that positive drug screens for marijuana were higher than the national average in Colorado and Washington, two states that have legalized recreational marijuana.