49 C.F.R. § 40.181 – What does the second laboratory do with the split specimen when it is tested to reconfirm a substituted test result? | Midpage
§ 40.181
49 C.F.R. § 40.181
What does the second laboratory do with the split specimen when it is tested to reconfirm a substituted test result?
Effective Jun 1, 2023
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.