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Random Testing Rates

2023 DOT Random Testing Rates

The following chart outlines the annual minimum drug and alcohol random testing rates
established within DOT Agencies for 2023.
 
DOT Agency
2023 Random Drug Testing Rate
2023 Random Alcohol Testing Rate

Federal Motor Carrier Safety Administration
[FMCSA]

The random rates did not change for 2023.  Because the random rates did not change, FMCSA is not required to publish a notice in the Federal Register.  The rate last changed in 2020.

50%

10%

Federal Aviation Administration
[FAA]

2023 Random Rate Federal Register Notice

25%

10%

Federal Railroad Administration
[FRA]

2023 Random Rate Federal Register Notice

25% - Covered Service

10% - Covered Service

25% - Maintenance of Way

10% - Maintenance of Way

50% - Mechanical

(Effective 03/04/2022)

25% - Mechanical

(Effective 03/04/2022)

Federal Transit Administration
[FTA]

2023 Random Rate Federal Register Notice

50%

10%

Pipeline & Hazardous Materials Safety Administration
[PHMSA]

2023 Random Rate Federal Register Notice

25%

N/A

 

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.

A red and white checkered hot-air balloon is rising up toward the right, above a complex maze below. A slogan to the right of the balloon says, “Preventing Substance Abuse Begins with Knowledge.”

Last updated: Friday, January 6, 2023