Alaska Stat. § 39.35.450
(a) Benefits payable under this section are in place of benefits payable under AS 39.35.370, 39.35.385, and former AS 39.35.460. Upon filing an application with the administrator or when a disabled employee first attains eligibility for normal retirement under AS 39.35.400(f) or 39.35.410(h), the employee shall designate the person who is the employee's spouse at the time of appointment to retirement as the contingent beneficiary. However, if the designation of the spouse is revoked under (c) of this section, the employee may designate a dependent approved by the administrator as the contingent beneficiary or may take normal or early retirement under AS 39.35.370 or 39.35.385 or, if the employee was first hired before July 1, 1996, benefit payments under the level income option under former AS 39.35.460. The administrator shall pay benefits under the option elected by the employee. The employee may elect an option that provides that the employee is entitled to receive a reduced benefit payable for life, and, after the employee's death, the contingent beneficiary is entitled to payments in the amount of
(c) An employee may elect or change an option without the approval of the administrator if the election or change is filed in writing with the administrator before the effective date of the employee's retirement. An employee may revoke a joint and survivor option if the employee files with the administrator before the effective date of the employee's retirement a revocation and consent to the revocation signed by the employee's present spouse and each person entitled to benefits under a qualified domestic relations order on forms provided by the administrator. The administrator may waive the requirement for written consent from
(2) the spouse if