When a commercial truck driver fails a drug or alcohol test or refuses to take one, federal law does not simply allow them to get back behind the wheel the next day. Instead, the law requires a specific process to protect the public, and at the heart of this process is the Substance Abuse Professional.
Under 49 CFR Part 40, a Substance Abuse Professional is a specially credentialed professional who evaluates drivers who have violated the Department of Transportation’s drug and alcohol testing rules. Substance Abuse Professionals are not just counselors; they are federally recognized gatekeepers with the power to determine whether a driver can return to safety-sensitive duties such as operating a tractor-trailer. To qualify, an Substance Abuse Professional must be a licensed physician, psychologist, social worker, employee assistance professional, or certified drug and alcohol counselor, and must undergo DOT-approved training and testing.
Once a driver tests positive or refuses testing, the employer must immediately remove that driver from duty. At that point, the Substance Abuse Professional steps in. The Substance Abuse Professional conducts a face-to-face evaluation, determines whether the driver requires education, treatment, or both, and develops a rehabilitation plan. Only after the Substance Abuse Professional certifies that the driver has complied with these recommendations can the driver take a return-to-duty test. Even then, the process is not over. Federal rules require the Substance Abuse Professional to design a follow-up testing schedule that the employer must enforce, often lasting years and involving numerous unannounced tests.
