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['Drug and Alcohol Testing - DOT']
['Split specimen - Motor Carrier']
09/17/2024
§40.181 What does the second laboratory do with the split specimen when it is tested to reconfirm a substituted test result?
As the laboratory testing a urine split specimen, you must test the split specimen using the confirmatory tests for creatinine and specific gravity, using the criteria set forth in §40.88.
[73 FR 35973, June 25, 2008; 88 FR 27646, May 2, 2023]
['Drug and Alcohol Testing - DOT']
['Split specimen - Motor Carrier']
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