In regulation 1(2) of the principal Regulations (interpretation)—
(a) for the definition of “25-year gross redemption yield” there shall be substituted the following definition—
“20-year gross redemption yield” means the gross redemption yield applicable to 20-year British Government Stocks with high coupons compiled by the Financial Times, the Institute of Actuaries and the Faculty of Actuaries;
(b) for the definition of “25-year index number” there shall be substituted the following definition—
“20-year index number” means the number shown in the appropriate column in the table in Schedule 7 opposite the range of yields which includes the 20-year gross redemption yield;