Sec. 13. "Weighted average life" of an issue of bonds or notes means:
(1) the sum of the products of the face amount of each maturity and the number of years to maturity (determined separately for each maturity and by taking into account mandatory sinking fund redemptions); divided by
(2) the face amount of the entire issue of bonds or notes.
As added by P.L.68-1988, SEC.12.