Upgrade to eRegs Pro

Highlight & annotate regulations, get FMCSA guidance as you read, access offline, and keep your fleet compliant.

Viewing current regulations

§ 40.86

What is urine validity testing, and are laboratories required to conduct it?

(a)Specimen validity testing is the evaluation of the specimen to determine if it is consistent with normal human urine. The purpose of validity testing is to determine whether certain adulterants or foreign substances were added to the urine, if the urine was diluted, or if the specimen was substituted.

(b)As a laboratory, you must conduct validity testing.

§ 40.85

§ 40.87