Tag: medical marijuana laws

News

Drug Testing Index: A look at 2014-2018

May 10, 2018 By

The Quest Diagnostics Drug Testing Index reveals insights into patterns of drug use among the U.S. workforce on its 30th anniversary. Download our timeline.

Illicit drugs

America’s favorite illicit drug: marijuana

July 7, 2017 By

As marijuana use increases in our society, drug testing continues to be an important tool for employers to maintain a safe, drug-free workplace.