Sec. 14. (a) All assets in the plan are exempt from levy, sale, garnishment, attachment, or other legal process.
(b) A member, beneficiary, or survivor may not assign any payment under this chapter except for the following:
(1) Premiums on a life, hospitalization, surgical, or medical group insurance plan maintained in part by a state agency.
(2) Dues to an association that proves to the board's satisfaction that the association has as members at least twenty percent (20%) of the retired members in the plan.