Where an interim arrangement employee becomes a scheme employee, his or her designated employer must pay to CSC :
(a) a contribution in respect of the employee equal to the amount of the interim benefit that would have been payable in respect of the employee if he or she had ceased to be a qualified employee on the day immediately before the day on which he or she became a scheme employee; and
(b) where that amount is not paid on the day on which he or she becomes a scheme employee--a contribution in respect of the employee of interest, fixed under section 4G in relation to the Fund, on the amount in respect of each day in the period commencing on the day on which the amount should have been paid and ending on the day immediately before the day when the amount is paid.