The board shall, from time to time, by order, set the rate of regular interest at a percent rate compounded periodically determined by the board to be equitable, both to members and to the taxpayers of the State.

PL 1985, c. 801, §§5,7 (NEW). PL 1989, c. 95, §1 (AMD). PL 1991, c. 619, §5 (AMD). PL 1991, c. 619, §18 (AFF).