15-5-413. Optional forms of benefits.
(a) Any member eligible for a service or disability pension may elect to receive one (1) of the following optional forms, in lieu of the pension computed in W.S. 15-5-409 through 15-5-411, which shall be the actuarial equivalent of the benefit to which he would otherwise be entitled:
(i) A reduced pension payable to the retired member and upon his death all of the reduced pension to be paid to his surviving spouse;
(ii) A reduced pension payable to the retired member and upon his death one-half (1/2) of the reduced pension to be paid to his surviving spouse;
(iii) A benefit which provides reduced monthly service retirement payments with provision for the continuance of payments for ten (10) years certain and life thereafter. If the retired member dies within ten (10) years after retirement, the remaining guaranteed payments shall be made to his designated beneficiary. This beneficiary may be changed at any time by written notification to the board as provided in subsection (b) of this section;
(iv) The largest possible benefit for life with no lump sum refund or benefit for anyone else upon the retired member's death;
(v) Any other modified monthly service retirement benefit, including any other modified joint and survivor monthly service retirement benefit, actuarially determined, which the board approves.
(b) An election of an optional benefit shall be in writing and filed with the board prior to the first benefit payment. After an election of any of the options provided in subsection (a) of this section has been made and the member has cashed his first pension check, or sixty (60) days from the date of issuance of the check have elapsed, the election is irrevocable unless a beneficiary dies prior to the occurrence of either such event, in which case the election is void and the member may, by written notice to the board, designate a new beneficiary and may select a different option. As provided in paragraph (a)(iii) of this section, upon written notice to the board, a member may change a beneficiary at any time within the ten (10) year period.
(c) The retirement benefits payable under optional forms available under this section shall be the actuarial equivalent of the normal benefit form under W.S. 15-5-409.