Observations
Most cases involving trucks will obviously involve a CDL holder. However, knowing early on if you face an exception to the requirement of a CDL will assist you in posturing the case effectively. For example, it is certainly worth exploring whether the driver of a large RV involved in a crash is from a state that has decided to required such drivers to possess a CDL.
Because the requirement of a CDL applies to operation of a commercial motor vehicle, keep in mind the basic definition of a CMV. Generally, a CMV is any vehicle weighing 26,001 pounds or more, any vehicle designed to transport sixteen or more passengers, or any vehicle used to transport hazardous materials (as they are defined in the rule).