Tennessee Code Title 16. Courts § 16-3-101

(a) The supreme court shall consist of five (5) judges, one (1) of whom shall reside in each grand division, and no more than two (2) in the same grand division.

(b) A judge must have been a resident of the grand division from which the judge is appointed for at least one (1) year immediately preceding appointment. For purposes of this subsection (b), “resident” has the same meaning as defined in § 2-1-104.

(c) Each judge shall be at least thirty-five (35) years of age at the time of appointment, shall have been a resident of the state for at least five (5) consecutive years immediately preceding appointment, and shall be licensed to practice law in this state. For purposes of this subsection (c), “resident” has the same meaning as defined in § 2-1-104.

(d) A judge's term of office shall be eight (8) years.

(e) The concurrence of three (3) of the judges is necessary to a decision in every case.