§40.91. What are the cutoff concentrations for oral fluid drug tests?
49 C.F.R. § 40.91
As a laboratory, you must use the cutoff concentrations displayed in the following table for initial and confirmatory drug tests for oral fluid specimens. All cutoff concentrations are expressed in nanograms per milliliter (ng/mL). The table follows:
Notes, amendments, and revision history
Amendments
[88 FR 27643, May 2, 2023]
Authority
Authority: 49 U.S.C. 102, 301, 322, 5331, 20140, 31306, and 54101 et seq.
Source
Source: 65 FR 79526, Dec. 19, 2000, unless otherwise noted.
Amendments
[88 FR 27643, May 2, 2023]