Drug Positivity Rates Of US Employees Subjected to Urine Drug Tests, by Worker Category

According to Quest Analytics, the drug positivity rates in 2018 of people in the US who were subjected to urine drug tests as a condition of employment are:
Federally Mandated Safety-Sensitive Workforce: 2.7%
General US Workforce: 5.1%
Combined US Workforce: 4.4%