Driver Licenses - As enacted, removes present law that prohibits a person from being denied a commercial driver license, or being deemed medically unqualified to operate a motor vehicle, based on the failure to meet motor safety carrier regulations because of a medical history or clinical diagnosis of diabetes mellitus currently requiring insulin, but whose medical history indicates that the insulin controls the diabetes to the extent that the condition is not likely to cause any loss of ability to control a motor vehicle. - Amends TCA Title 55, Chapter 50, Part 4.