Tennessee Code Title 8. Public Officers and Employees § 8-36-304

(1)(A) For a Group 1 member retiring under § 8-36-301(a)(1), reduced by four tenths of one percent (0.4%) for each month by which the member's date of early retirement precedes such member's service retirement date. If the member's creditable service is less than ten (10) years, the reduced benefit shall be further limited in accordance with the following:

(B) For a Group 1 member retiring under § 8-36-301(a)(2), the actuarial equivalent of the benefit as reduced under subdivision (1)(A) which would be payable at fifty-five (55) years of age;

(2)(A) For a Group 2 member retiring under § 8-36-301(b)(1), reduced by four tenths of one percent (0.4%) for each month by which the member's date of early retirement precedes such member's service retirement date.

(B) For a Group 2 member retiring under § 8-36-301(b)(2), reduced by four tenths of one percent (0.4%) for each month by which the member's date of early retirement precedes such member's attainment of fifty-five (55) years of age; and