Avoidance of duplicate pensions
E9.—(1) This regulation applies where a person’s effective reckonable service includes a period that also counts towards another pension payable directly or indirectly out of moneys provided by or under any statutory provision or raised by a rate (“the double period”).
(2) Subject to paragraphs (3) and (4), where this regulation applies the person’s retirement benefits are reduced by so much as is necessary to secure that
A is reduced by B,
where—
A is the actuarial value of the retirement benefits in respect of the double period; and
B is the actuarial value of the other pension in respect of that period.
(3) A shall not be reduced to less than the actuarial value of
where—
C is the contributions paid by the person in respect of the double period, including any paid under regulation C6 or C7; and
D is interest on those contributions at 3 per cent per annum, compounded with yearly rests, beginning with and including the first day of the financial year following that in which they were paid to the date on which he became entitled to payment of the retirement pension.
(4) A retirement pension shall not be reduced so that so much of it as is attributable to the double period falls below the rate of any equivalent pension benefits attributable to that period.
(5) For the purposes of this regulation, “another pension” includes any sum payable, whether as a continuing allowance or as a lump sum, by way of pension, superannuation allowance, compensation for loss or abolition of office or otherwise in respect of retirement.