How often must a CDL holder undergo a medical examination?

A CDL holder must undergo a medical examination at least every two years to ensure that they meet the health standards necessary for operating commercial vehicles safely. This periodic examination is critical because it assesses the driver's physical and mental fitness, checking for medical conditions that could impair their ability to drive effectively. The requirement aims to protect not only the driver but also the public on the road.

While some medical professionals may grant an extension for specific health issues, the two-year timeline is established as a baseline standard across the industry. This helps to ensure that any potential changes in health status are monitored regularly, thus enhancing overall road safety and compliance with federal regulations.