Tenn. Code Ann. § 55-12-119: Proof of financial responsibility with respect to a motor vehicle or a person not the owner of the vehicle

Proof of financial responsibility, when required under this chapter with respect to a motor vehicle or with respect to a person who is not the owner of the motor vehicle, may be given by filing:

(1) A certificate of insurance as provided in § 55-12-120 ;

(2) A bond as provided in § 55-12-102 ;

(3) A deposit in cash with the commissioner of no less than the amount specified in § 55-12-102 ; or

(4) A certificate of self-insurance, as provided in § 55-12-111 .