10.—(1) If a member—
(a)ceases to be employed by the employing authority to which notice was given under paragraph 1(1);
(b)was making payments of additional contributions up to the date of cessation, and
(c)before the expiry of the period of one month and one day beginning with that date enters a new employment in which he is also a member;
he may elect that his election to pay contributions under regulation C24 should continue to have effect.
(2) An election under sub-paragraph (1) shall be made by notice given in writing to the member’s new employing authority before the expiry of the period of one month beginning with the date on which the new employment begins.