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How a New Drug Testing Rule from USDOT Could Help Alleviate the Bus Operator Crisis

Marijuana is legal in some form in 23 states. So why should bus drivers get fired for using it when they're not behind the wheel?

Editor’s note: A version of this article originally appeared on Transit Center and is republished with permission.

The bus operator shortage across the country is impacting transit agencies’ ability to run service and leaving riders stranded. Our report on the topic, Operators in Crisis, found that a major impediment to hiring more operators: outdated drug testing.

Agencies still use urine tests to test for marijuana, which can detect the drug as far back as 30 days. This presents a big problem in the 23 states where marijuana has been legalized in some form. Bus drivers who use marijuana recreationally and legally but go to work completely sober can face punitive actions, and would-be operators who use it are deterred from applying to work at transit agencies, contributing to the shortage. 

In recognition of this dilemma, the USDOT changed drug testing rules on June 1st, 2023, allowing transit agencies and others involved with transportation to use oral fluid drug testing instead of, or alongside, urine testing. Oral fluid testing (sometimes called a spit or saliva test) only detects use as far back as 5 to 48 hours. This was a positive development, as it will give agencies the ability to hire more operators and preserve and expand transit service. 

Unfortunately, there’s a hold-up to implementing the USDOT rule: the US Dept. of Health and Human Services (DHHS) must certify at least two labs to do the testing before agencies can start using oral fluid drug testing. So far, DHHS hasn’t certified any. And two labs won’t be an ideal number from a geographic perspective, as it will require agencies to ship specimens across the country, even though it’s likely that once a couple of labs come on board, more will follow. 

The Substance Abuse and Mental Health Services Administration (SAMHSA) is the part of DHHS that is responsible for certifying these labs. SAMHSA created the National Laboratory Certification Program (NLCP) to develop a laboratory certification program, and NLCP has contracted with RTI International to do the certifications.  

We need more daylight on this issue – and your voice! Reach out to DHHS Secretary Xavier Becerra and ask him to expedite the lab certification process for Oral Fluid Drug Testing to enable our agencies to retain and hire more operators. He can be reached at,, or (202) 690-7000. 

While we wait for this certification process to resolve, it’s also essential to push your local transit agency to formally adopt policies that comply with the new rule and allow every employee to use the oral fluid test or “spit test” as opposed to the urine test for marijuana. Many agencies haven’t even heard about the new ruling – so you can help spread the word!

Drug laws have changed. It’s time for transit agencies to catch up. 

The post How a New Drug Testing Rule from USDOT Could Help Alleviate the Bus Operator Crisis appeared first on Streetsblog USA.

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