142.—(1) This regulation applies if, on the death of a member of this scheme, a surviving adult's pension becomes payable to a surviving adult who is more than 12 years younger than the member.
(2) The annual rate of the surviving adult's pension is reduced by the lower of—
(a)50% of the amount of the annual rate of the pension calculated under regulation 139, 140 or 141; and
(b)2.5 x (N –12)% of the amount of the annual rate of the pension so calculated,
where N is the number of whole years by which the surviving adult is younger than the member.