Compliance Just Got Easier: Stay ahead of regulatory changes with instant notifications on updates that matter.
['Drug and Alcohol Testing - DOT']
['Split specimen - Motor Carrier']
09/17/2024
§40.179 What does the second laboratory do with the split specimen when it is tested to reconfirm an adulterated test result?
(a) As the laboratory testing the split specimen, you must test the split specimen for the adulterant detected in the primary specimen, using the confirmatory test for the adulterant and using criteria in §40.89 or §40.93, as applicable and confirmatory cutoff levels required by the HHS Mandatory Guidelines.
(b) In addition, if the test fails to reconfirm the adulterant result reported in the primary specimen, you may send the specimen or an aliquot of it for testing at another HHS-certified laboratory that has the capability to conduct another reconfirmation test.
[73 FR 35973, June 25, 2008; 88 FR 27646, May 2, 2023]
['Drug and Alcohol Testing - DOT']
['Split specimen - Motor Carrier']
UPGRADE TO CONTINUE READING
J. J. Keller is the trusted source for DOT / Transportation, OSHA / Workplace Safety, Human Resources, Construction Safety and Hazmat / Hazardous Materials regulation compliance products and services. J. J. Keller helps you increase safety awareness, reduce risk, follow best practices, improve safety training, and stay current with changing regulations.
Copyright 2026 J. J. Keller & Associate, Inc. For re-use options please contact copyright@jjkeller.com or call 800-558-5011.
