A. Except as provided in R.S. 11:292, no portion of the fund shall before or after the order for distribution is issued by the board of directors to the person or persons entitled thereto under the provisions of this Subpart, be held, seized, or levied upon, by virtue of any attachment, garnishment, execution, or order or decree, or any other process whatsoever, issued out of or by any court, for the payment or satisfaction, in whole or in part, of any debt, damage, claim, judgment, or decree against any beneficiary of such fund, but shall be exempt therefrom. The fund shall be kept, held, and distributed for no purpose other than those provided for in this Subpart. No present or future revision or amendments to the fund shall have the effect of reducing any benefit now in existence.
B. Any annuity, retirement allowance or benefits, or refund of contributions, or any optional benefit or any other benefit paid to any person under the provisions of this Subpart shall be exempt from any state income tax.