Annual drug testing rate remains at 25 percent

Positive rate remains low based on FMCSA data

Posted December 15, 2016

The annual minimum random drug testing rate remains at 25 percent for Calendar Year (CY) 2017, according to the Federal Motor Carrier Safety Administration (FMCSA). The annual minimum alcohol testing rate remains at 10 percent for CY 2017.

Motor carriers operating vehicles requiring commercial driver’s licenses (CDLs) are subject to 49 CFR Part 382, DOT drug and alcohol testing regulations for the highway mode under FMCSA.

Background

The annual minimum drug testing rate was lowered by FMCSA in CY 2016 from 50 to 25 percent. The change in 2016 was the result of three consecutive calendar years — 2011, 2012, and 2013 — of drug testing data received in the Management Information System (MIS) survey, which indicated that the positive rate for controlled substances was less than one percent. FMCSA conducts the MIS survey to ensure compliance with the set testing rates.

The regulations allow the FMCSA Administrator the discretion of lowering the minimum rate to 25 percent when the data received in the MIS for two consecutive calendar years indicates that the positive rate for controlled substances is less than one percent. However, should the positive rate for controlled substances exceeds one percent at any time, the testing rate will automatically move back to 50 percent.


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