American workplaces are facing unprecedented challenges related to the rapidly evolving landscape of cannabis legalization and its increasing use among workers. Cannabis[1] is the most frequently used illicit drug (by Federal law) among Americans, with an estimated 43.5 million past-year users age 12 or older in 2018 (1). Nearly 18% of adults employed full-time, and nearly 21% of adults employed part-time, reported using cannabis during the previous year. The implications for workplace safety are emerging, as well as concerns about impairment, risk of injury, recruitment and hiring, regulatory issues, and the overall health and well-being of both workers and the
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