70.1. If the total amount of the contributions of the employee, including the accrued interest, exceeds the amounts paid as pension to an employee and pension paid to the widow or widower of the employee, the excess amount shall be paid in a single payment.
Where amounts have been paid as pension and if the employee has thereafter held an employment contemplated in this plan, the total amount of the contributions of the employee including the accrued interest is reduced by the amounts paid as pension from the date the employee again holds a contemplated employment.
Interest is computed as provided in section 76 and in respect of any period for which no amount was paid as pension.