Fact Sheet

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Current Random Testing Rates

2018 DOT Random Testing Rates

The following chart outlines the annual minimum drug and alcohol random testing rates
established within DOT Agencies and the USCG for 2018.
DOT Agency
2018 Random Drug Testing Rate
2018 Random Alcohol Testing Rate

Federal Motor Carrier Safety Administration
[FMCSA]

25%

10%

Federal Aviation Administration
[FAA]

25%

10%

Federal Railroad Administration
[FRA]

25% - Covered Service

10% - Covered Service

50% - Maintenance of Way *

25% - Maintenance of Way *

Federal Transit Administration
[FTA]

25%

10%

Pipeline & Hazardous Materials Safety Administration
[PHMSA]

50%

N/A

United States Coast Guard

[USCG]

(with the Dept. of Homeland Security)

25%

N/A

“*”:  Random testing began on 06/12/2017 - For more info see e-CFR 

NOTE: Employers (and C/TPAs) subject to more than one DOT Agency drug and alcohol testing rule may continue to combine covered employees into a single random selection pool.

USCG covered employees may be combined with DOT covered employees in drug testing pools even though the USCG is now part of the Department of Homeland Security.

Updated: Thursday, October 11, 2018
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