Tennessee Code Title 55. Motor and Other Vehicles § 55-21-303

(a) At the time of initial application for the registration of a motor vehicle under this part, or upon renewal, an owner or lessee of a motor vehicle who needs assistance with expressive language or communicating needs to a first responder, including a law enforcement officer, or assistance with exiting a motor vehicle during a traffic stop or welfare check, may request that the department include a designation of such need for assistance in the Tennessee Vehicle Title and Registration System (VTRS) database. The registrant's request must be accompanied by a written statement from a licensed physician, psychiatrist, psychologist or senior psychological examiner, or neurologist, stating that an operator of the person's motor vehicle has an intellectual disability, a developmental disability, or a medical condition that may impede communications with, or impact the operator's encounter with, a first responder. Upon receipt of such a request accompanied by a written statement, the department shall cause the registrant's status to be entered into the VTRS database, and ensure such designation is associated with the applicant's motor vehicle and registration.

(b) Information submitted to the department under this section must be supplied to law enforcement to assist in identifying the operator of the vehicle as possibly needing such assistance. Information collected pursuant to this section must only be available to law enforcement for the purpose of ensuring safe and efficient interactions between law enforcement and persons who have such need for assistance, and must not be used for any other purpose.

(c) All law enforcement officers charged with the enforcement of this title and emergency call takers and public safety dispatchers, as described in § 7-86-205, shall receive instruction in the identification of such designation included in the VTRS database as provided for in this section.