Tennessee Code Title 2. Elections § 2-2-202

(1) All offices in the state that provide public assistance;

(2) All offices in the state that provide state-funded programs primarily engaged in providing services to persons with disabilities; and

(3) Public libraries, public high schools, offices of county clerks and offices of county registers of deeds;

shall serve as voter registration agencies. Those agencies designated under subdivision (2) that provide services to a person with a disability at the person's home shall provide the voter registration services at the person's home; provided, that a public library, a county clerk's office, or a county register of deeds office shall not serve as a voter registration agency if such office is located in the same building as the county election commission's office.