Chicago Accident Lawyer Blog

When people think of truck safety, they often picture brakes, tires, and driver training. Yet one of the most overlooked aspects of safety in the trucking industry lies in paperwork—specifically, recordkeeping and reporting under 49 CFR Part 40. These requirements are not red tape. They are the backbone of the drug and alcohol testing system that protects the public from impaired truck drivers.

Every trucking company has a legal duty to maintain accurate and complete testing records. Positive drug or alcohol tests, refusals to test, evaluations by a Substance Abuse Professional, and follow-up testing schedules must be kept for at least five years. Negative and canceled test results must be retained for at least one year. Employers must also preserve collection records, laboratory reports, and communications with medical review officers. These documents must be readily available to the Department of Transportation or the Federal Motor Carrier Safety Administration within two business days of a request.

Beyond storage, employers must report violations. If a driver refuses or fails a test, the employer is required to provide that information to state licensing authorities. This ensures that a driver who poses a safety risk cannot simply move to another company and get behind the wheel undetected. When companies fail to report, they help dangerous drivers slip through the cracks, putting the public in jeopardy.

Federal law recognizes a simple truth that if truck drivers could predict when they would be tested for drugs or alcohol, the testing system would fail. That is why 49 CFR Part 40 and related DOT rules require truly random testing of drivers in safety-sensitive positions, including those who operate tractor-trailers on public roads. Random testing is a mandatory safety tool designed to keep impaired drivers out of 80,000-pound vehicles.

Random testing must be unpredictable. Carriers cannot tip off drivers, use biased selection methods, or schedule tests for convenience. Instead, the selection process must be scientifically valid and spread throughout the year. Each driver must have an equal chance of being chosen every time names are drawn. Importantly, being tested once does not exempt a driver from being tested again in the same year. The law is structured this way to create a constant deterrent against drug and alcohol use.

When a driver is selected, the employer must act immediately. Federal rules require that drivers report for testing as soon as they are notified. Employers cannot delay or reschedule to make life easier for the driver. A delay not only undermines the deterrent effect but can also signal that a company is willing to bend the rules—an attitude that often spills into other safety violations.

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.