49 CFR 40.179
§ 40.179 What does the second laboratory do with the split specimen when it is tested to reconfirm an adulterated test result?
United States · 49 CFR — Transportation · Status: effective
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- Citation
- 49 CFR 40.179, § 40.179 What does the second laboratory do with the split specimen when it is tested to reconfirm an adulterated test result?, United States, version 1 as recorded 2026-07-09, yourstate.us, https://yourstate.us/provision/255276
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Full text
(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.
Legislative history
This is a federal regulation, adopted through agency rulemaking under the Administrative Procedure Act — not enacted by a recorded vote of Congress.