Tennessee Code Title 65. Public Utilities and Carriers § 65-15-116

(1) Maintain a policy of liability insurance in the amount of not less than one million dollars ($1,000,000) in value, which shall bind the obligors under the policy to make compensation for injury to persons and for loss of or damage to property resulting from the negligent operation by the driver, unless the transportation provider is a self insured local government or public transportation provider;

(2) Conduct a program of mandatory random drug testing for the operators of its motor vehicles in accordance with regulations promulgated by the United States department of transportation;

(3) Require the operators of its motor vehicles to submit to physical examination every two (2) years, in accordance with regulations promulgated by the United States department of transportation;

(4) Subject each transportation provider operating in the capacity as a passenger transportation service to an annual safety examination compliance review to be conducted by the department of safety. For purposes of this section, “compliance review” means reviewing:

(5) Comply with all other requirements deemed necessary to protect the public safety and welfare as specified by the department of safety in its promulgation of rules and regulations to effectuate such purpose.