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06/01/21
National Safety Council
Secaucus, NJ Paced by sharp rises in marijuana positivity rates, the positive drug test rate for U.S. workers continued at a historically high level in 2020, according to an annual analysis conducted by lab services provider Quest Diagnostics.
Researchers examined the results of more than 7 million samples taken last year for Quest Diagnostics Drug Testing Index from the combined U.S. workforce – both the general workforce and employees in safety-sensitive jobs who undergo federally mandated drug testing. Overall, 4.4% of the samples tested positive – down from a 16-year high of 4.5% in 2019, but still higher than the 30-year low of 3.5% recorded in 2010, 2011 and 2012.