49 CFR 40.181 - What does the second laboratory do with the split specimen when it is tested to reconfirm a substituted test result?

§ 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 the split specimen, you must test the split specimen using the confirmatory tests for creatinine and specific gravity, and using the confirmatory criteria set forth in § 40.93(b).

[ 73 FR 35973, June 25, 2008]

Title 49 published on 09-May-2017 04:41

The following are ALL rules, proposed rules, and notices (chronologically) published in the Federal Register relating to 49 CFR Part 40 after this date.

  • 2017-01-23; vol. 82 # 13 - Monday, January 23, 2017
    1. 82 FR 7771 - Procedures for Transportation Workplace Drug and Alcohol Testing Programs: Addition of Certain Schedule II Drugs to the Department of Transportation's Drug-Testing Panel and Certain Minor Amendments
      GPO FDSys XML | Text
      DEPARTMENT OF TRANSPORTATION, Office of the Secretary
      Notice of proposed rulemaking.
      Comments to the notice of proposed rulemaking should be submitted by March 24, 2017. Late-filed comments will be considered to the extent practicable.
      49 CFR Part 40
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