30.—(1) This regulation applies for the purpose of these Regulations, other than for the purpose of Part 10 (contributions).
(2) A member's pensionable earnings for any period—
(a)for a member who falls within regulation 4(1)(a) or (c), in full time service means pay at the rate to which the member is entitled in that period, account being taken of any retrospective increase in that rate.
(b)for a member who falls within regulation 4(1)(a) 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.
(c)for a member who falls within regulation 4(1)(b) or (d), means pay at the rate to which the member is entitled in that period, under the member's terms and conditions of employment, account being taken of any retrospective increase in that rate.