Tuesday, June 18, 2024


Department of Transportation Releases 2023 Random Testing Rates


The Office of Drug and Alcohol Policy & Compliance (ODAPC) has released its Random Testing Rates for 2023.

PHMSA annual random drug testing rate will be 25% in 2023. For all other DOT Agencies, the 2023 annual random testing rates will remain the same as their 2022 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.
The rate last changed in 2020.
50% 10%
Federal Aviation Administration [FAA] 25% 10%
Federal Railroad Administration [FRA] 25% - Covered Service

25% - Maintenance of Way

50% - Mechanical
(Effective 03/04/2022)
10% - Covered Service

10% - Maintenance of Way

25% - Mechanical
(Effective 03/04/2022)
Federal Transit Administration [FTA] 50% 10%
Pipeline & Hazardous Materials Safety Administration [PHMSA] 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.

Additional information is available at https://www.transportation.gov/odapc/random-testing-rates. 

Fleets and Fuel Delivery
January-February 2023
Drug and Alcohol Testing

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