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40.81 What laboratories may be used for DOT drug testing
(a) As a drug testing laboratory located in the U.S., you are permitted to participate in DOT drug testing only if you are certified by HHS under the
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2013-2014 National Roadside Study of Alcohol and Drug
by T Kelley-Baker 2017 Cited by 44 2013-2014 National Roadside Study of alcohol and drug use by drivers: Drug results. (Report No. DOT HS 812 411). Washington, DC: National Highway Traffic Safety.
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Drug Testing Laboratories
Jun 13, 2023 Drug testing laboratories certified by the Department of Health and Human Services receive urine specimens and test them to determine the
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