Section 238.490 - Administrative expenses(1) The administrative expenses incurred by the Public Employees Retirement Board in administering the Public Employee Benefit Equalization Fund shall be paid from interest earned by the fund. If the interest is insufficient, the excess expense shall be paid from the contributions by participating employers under ORS 238.488.(2) In order to facilitate financing the establishment and administration of the Public Employee Benefit Equalization Fund, the board may designate fiscal periods and may provide that extraordinary expenses incurred during a period, such as expenses for equipment and actuarial studies, may, for purposes of equitably distributing part of the burden of expenses, be apportioned to subsequent fiscal periods in any manner that seems equitable to the board.(3) For each fiscal period designated by the board, the administrative expenses of the fund for that period shall be deducted from the interest earned by the Public Employee Benefit Equalization Fund. If such interest be insufficient for such purpose, each employer contributing to the Public Employee Benefit Equalization Fund shall pay a fraction of those administrative expenses determined by dividing the employer's total contribution to the fund for the period by the sum of all the employers' contributions to the fund for the period.