57.—(1) An additional pension election by a member (M) must be made by written notice to the scheme manager stating whether additional pension contributions are to be paid—
(a)as a lump sum; or
(b)by periodic payments.
(2) An additional pension election by M's employing authority must be made by written notice to the scheme manager.
(3) A notice under this regulation must be accompanied by a declaration by M that M is in good health.
(4) An additional pension election must not be made at any time when M is absent from work for any reason.