5 CFR §831.601

1. (a)This subpart explains the annuity benefits payable in the event of the death of employees, retirees, and Members; the actions that employees, retirees, Members, and their current spouses, former spouses, and eligible children must take to qualify for survivor annuities; and the types of evidence required to demonstrate entitlement to provide survivor annuities or qualify for survivor annuities.
2. (b)Unless otherwise specified, this subpart, except §§ 831.682 and 831.683 and the provisions relating to children's survivor annuities, only applies to employees and Members who retire under a provision of law that permits election of a reduced annuity to provide a survivor annuity.