After the conclusion of the transition period, the actuarial statements shall be prepared by or under the supervision of a qualified actuary retained by the Consolidated Fund, and if a change occurs in an actuarial or investment assumption that increases or decreases the actuarially required contribution for the pension fund, that change shall be implemented in equal annual amounts over the 3-year period beginning in the fiscal year of the pension fund in which such change first occurs.
The actuarially required contribution as described in this subsection shall determine the annual required employer contribution.
40 ILCS 5/1A-111