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Code of Federal Regulations

Subpart H

Split Specimen Tests

40.171How does an employee request a test of a split specimen?40.173Who is responsible for paying for the test of a split specimen?40.175What steps does the first laboratory take with a split specimen?40.177What does the second laboratory do with the split specimen when it is tested to reconfirm the presence of a drug or drug metabolite?40.179What does the second laboratory do with the split specimen when it is tested to reconfirm an adulterated test result?40.181What does the second laboratory do with the split specimen when it is tested to reconfirm a substituted test result?40.183What information do laboratories report to MROs regarding split specimen results?40.185Through what methods and to whom must a laboratory report split specimen results?40.187What does the MRO do with split specimen laboratory results?