HRS § 88-61
L 2008, c 47, §16 provides:
"SECTION 16. Sections 8 and 9 of this Act [amending sections 88-61 and 88-73 ] shall not be applied to affect the rights of any retirants, as defined in section 88-21, Hawaii Revised Statutes, who retired prior to the effective date of this Act [October 1, 2008], or rights of the beneficiaries or survivors of those retirants."