4.—(1) Subject to the provisions of these rules and to the conditions specified in rule 5 being satisfied, this part of these rules shall apply—
(a)to a person who on or after the commencement of these rules enters overseas employment within the prescribed period after leaving local government employment, and
(b)if the first fund authority consent, to a person who before the commencement of these rules entered overseas employment within the prescribed period, having left local government employment on or after 4th February 1948.
(2) This part of these rules shall not apply to any person who has become entitled to any benefit (other than a return of contributions) in respect of his local government employment.