Tennessee could not be one of America’s most vital logistics, multimodal, and transportation hubs without its extensive network of highways and other roads. These roads connect key transportation facilities such as the Port of Memphis, FedEx’s global headquarters and largest distribution hub, and Memphis International Airport (home to FedEx’s global air hub). However, this dependence on roads has led to heavy traffic (especially truck traffic) and frequent urban congestion on such roads as Interstates 24, 40, 65, and 75, which increase the likelihood of accidents. I-24 poses additional accident risks due to having some of the steepest grades in the entire Interstate Highway System. Meanwhile, winding sections, sharp curves, and steep grades add to the accident risk on I-40. To assure yourself that your vehicle can handle such challenging conditions safely, conduct a comprehensive pre-trip inspection of your vehicle before your first trip of the day.
Before you can apply for a Commercial Driver’s License (CDL), obtain a Commercial Learner’s Permit (CLP) to practice operating CMVs under supervision. A key requirement for a CLP is to pass the official General Knowledge test on general driving theory. Your test will likely contain questions on pre-trip inspections, including identifying problems with your vehicle’s systems and components. All questions on the General Knowledge test are based on the official Tennessee CDL manual (Tennessee CDL Handbook 2026). It discusses pre-trip inspections in detail, including the systems and components you must inspect and the minimum performance criteria for their safe operation. You should study the manual. However, you may not find it easy to absorb and memorize all that information just by reading about it.
Use our free CDL pre-trip inspection checklist to prepare for the hands-on exam.