In the aftermath of a serious or even fatal bus accident, both state and federal investigators will work tirelessly to determine what exactly transpired and whether the actions of the bus operator somehow contributed to the crash.

Specifically, they will seek to uncover whether the bus operator was driving recklessly, driving distracted, and/or driving under the influence of alcohol or other drugs.

In fact, it is worth noting that the takes the U.S. Department of Transportation takes the issue of impaired driving very seriously. Indeed, the Federal Motor Carrier Safety Administration subjects all bus operators to very specific drug and alcohol regulations.

Who exactly is subject to the FMCSA’s drug and alcohol regulations?

In general, all commercial driver licensed (CDL) employees tasked with operating commercial motor vehicles (CMVs) — those vehicles whose gross vehicle weight rating is over 26,000 or carrying more than 16 passengers — on public roadways must submit to the FMCSA’s drug and alcohol testing program.

Are prospective bus operators subject to this testing?

Yes. The FMCSA regulations dictate all new bus operators must pass a drug test before they can take CMVs out on public roads. As for alcohol testing, the regulations hold that it is permissible provided it applies to all operators, not just prospective hires.

What about random drug and alcohol testing?

The FMCSA regulations allow for both random drug and alcohol testing of bus operators.

As far as drug testing is concerned, a bus operator can be ordered to submit to a test at any time, including during their off-duty hours spent in the comfort of their own home.

Things are somewhat different concerning alcohol, as random testing for alcohol can only take place immediately before or after a bus operator goes on-duty, or while they are actually on-duty.

We will continue to examine this topic in future posts, including the other types of testing to which bus operators and other CDL drivers are subject, and the types of testing procedures performed.

If the negligence of a bus operator or bus company has left you with serious personal injuries or caused the loss of a loved one, please consider speaking with an experienced legal professional as soon as possible to learn more about your options.

Trial attorney F. Braxton “Brack” Terry focuses his law practice on representing injured people in a wide range of personal injury claims, including cases involving truck crashes, car accidents, defective products, premises liability, and more. His efforts have secured significant verdicts and settlements, including over $20 million for a large group of plaintiffs, and recoveries of $5.3 million, $4.1 million, $3.6 million, $3.1 million, $2.49 million, and high-six-figure amounts for individuals.

Brack has received numerous professional honors from prestigious organizations. Most recently, he was named “Lawyer of the Year” by Best Lawyers® for Personal Injury Litigation in Knoxville in 2026. He has been listed in Best Lawyers® every year since 2013 and by Super Lawyers since 2009. Brack has been a member of the Multi-Million Dollar Advocates Forum since 2007.

Brack earned his law degree from the Nashville School of Law in 1996. In addition to membership in the Tennessee Bar, he is admitted to practice before the U.S. District Court for the Eastern District of Tennessee and the U.S. Court of Appeals for the 6th Circuit. Brack is a member of many professional organizations, such as the Tennessee Trial Lawyers Association, the American Association for Justice, and the Interstate Truck Litigation Group.

Admitted to Tennessee Bar: 1996
Years of Legal Experience: 30
Listed in The Best Lawyers in America®: 2013-Present
Listed as a Mid-South Super Lawyer: 2009-Present