The right of any person to any future payment under a pension and annuity retirement system established in this chapter shall not be transferable or assignable, at law or in equity, and shall not be subject to execution, levy, attachment, garnishment, or other legal process, or to the operation of any bankruptcy or insolvency law, except for the purposes of enforcing child, spousal, or medical support obligations, or marital property orders. For the purposes of enforcing child, spousal, or medical support obligations, the garnishment or attachment of or the execution against benefits due a person under such a retirement system shall not exceed the amount specified in 15 U.S.C. § 1673(b).
Iowa Code § 294.10B
96 Acts, ch 1187, §79