(1) Except as provided in this section, the right of a person to a pension, an annuity or a retirement allowance, to the return of contribution, the pension, annuity or retirement allowance itself, any optional benefit or death benefit, or any other right accrued or accruing to any person under the provisions of this chapter or ORS chapter 238A, and the money in the various funds created by ORS 238.660 and 238.670, shall be exempt from garnishment and all state, county and municipal taxes heretofore or hereafter imposed, except as provided under ORS chapter 118, shall not be subject to execution, garnishment, attachment or any other process or to the operation of any bankruptcy or insolvency law heretofore or hereafter existing or enacted, and shall be unassignable.
(2) Subsection (1) of this section does not apply to state personal income taxation of amounts paid under this chapter and ORS chapter 238A.
(3) Unless otherwise ordered by a court under ORS 25.387, the exemption from execution or other process granted under this section applies to 50 percent of amounts paid under this chapter and ORS chapter 238A if the execution or other process is issued for a support obligation or an order or notice entered or issued under ORS chapter 25, 107, 108, 109, 110, 419B or 419C.