Tennessee Code Title 8. Public Officers and Employees § 8-36-910

(a) Except as otherwise provided in this section and in § 8-36-921, any participant shall be eligible for an early service retirement allowance from the defined benefit component of the plan upon attainment of sixty (60) years of age and completion of five (5) years of creditable service, or upon attainment of a combination of age and years of creditable service as to equal eighty (80).

(b) Any participant serving in a position covered by the mandatory retirement provisions of § 8-36-205 shall be eligible for an early service retirement allowance from the defined benefit component of the plan upon attainment of fifty-five (55) years of age and upon completion of five (5) years of creditable service, or at any age upon completion of twenty-five (25) years of creditable service.

(c) Any participant serving as the attorney general and reporter, a district attorney general, district public defender, state judge, or as a member of the general assembly shall not be eligible for an early service retirement allowance under the defined benefit component of the plan. Instead, such participants shall be eligible for a retirement allowance from the defined benefit component of the plan upon meeting the applicable conditions set forth in § 8-36-906.