Tenn. Code Ann. § 55-4-135: Registration of vehicles by owners performing full-time service in the military

Notwithstanding any law to the contrary, the owner of any motor vehicle who is performing full-time service in the military and who is stationed outside of the continental United States shall be given a grace period of thirty (30) days from the date of the owner's return to this state to renew the registration for any motor vehicle registered to the owner.