Random Testing Rates

2024 DOT Random Testing Rates

The following chart outlines the annual minimum drug and alcohol random testing rates
established within DOT Agencies for 2024.
DOT Agency
2024 Random Drug Testing Rate
2024 Random Alcohol Testing Rate
Federal Motor Carrier Safety Administration
[FMCSA]

The random rates did not change for 2024.  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]

2024 Random Rate Federal Register Notice

2024 Federal Register Notice – Correction

25%

10%

Federal Railroad Administration
[FRA]

2024 Random Rate Federal Register Notice

25% – Covered Service

10% – Covered Service

25% – Maintenance of Way 10% – Maintenance of Way
50% – Mechanical 25% – Mechanical
Federal Transit Administration
[FTA]

2024 Random Rate Federal Register Notice

50%

10%

Pipeline & Hazardous Materials Safety Administration
[PHMSA]

2024 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.

Source: (https://www.transportation.gov/odapc/random-testing-rates) Friday, December 29, 2023
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