2024 DOT Random Testing Rates
Employers and C/PTAs 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 not part of the Department of Homeland Security.
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 Notice2024 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 |
