The Department of Transportation’s operating agencies have announced their random drug and alcohol testing rates for 2022.  The random test rates did not change, except for maintenance-of-way workers under the Federal Railway Administration’s regulations.


Agency 2022 Random Drug Testing Rate 2022 Random Alcohol Testing Rate

Federal Aviation Administration


25% 10%

Federal Motor Carrier Administration


50% 10%

Federal Railway Administration


25%  covered service 10%  covered service
Federal Railway Administration 25% maintenance-of-way 10% maintenance-of-way

Federal Transit Administration


50% 10%

Pipeline and Hazardous Materials Safety Administration


50% N/A