24.—(1) This regulation applies for the purpose of these Regulations, other than for the purpose of calculating the rate of member contributions under Part 10 (contributions).
(2) A member’s pensionable earnings for any period—
(a)for a member in full-time service, means pay at the rate to which the person is entitled in that period, account being taken of any retrospective increase in that rate;
(b)for a member in part-time service, means so much of the member’s pay at that rate as is attributable to the member’s determined hours specified under the member’s part-time appointment, account being taken of any retrospective increase in that rate.