10.—(1) Regulation 23C of the principal regulations shall apply so as to enable an officer who is able to reckon additional contributing service to elect to make payment in respect of that service as though the requirement in that regulation for elections to be made within 12 months were omitted, and for the purpose of calculating the amount payable under that regulation the material date shall be the date on which his election is received by the Secretary of State, so, however, that where such election is received after he ceases to be an officer the material date shall be the date on which he so ceased to be an officer.
(2) Regulation 22 of the National Health Service (Superannuation) (Amendment) Regulations 1975(1) except paragraphs (2) and (8) thereof, shall apply to any person therein mentioned in respect of any additional contributing service as though the references in that regulation to 31st December 1975 were references to the date of coming into operation of these regulations, so, however, that the material date shall be the date before the coming into operation of these regulations on which the person last ceased to be an officer for the purpose of the principal regulations.
(1975 II, p. 4362).