Many contend that hair testing is more accurate than the current urinalysis tests. While urinalysis can reveal drugs used in the past one to three days, hair testing can uncover repeated drug use up to 90 days. For that reason, several motor carriers already use hair testing even though it comes at added expense. The post Mandatory Hair Testing of Truckers for Drugs Moves Forward appeared first on PrePass. https://ift.tt/3aYDiln
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