5 CFR §842.613

1. (a)The maximum combined total of all current and former spouse annuities (not including any benefits based on an election of an insurable interest rate) payable based on the service of a former employee or Member equals 50 percent of the rate of the self-only annuity that otherwise would have been paid to the employee, Member, or retiree.
2. (b)By using the elections available under this subpart or to comply with a court order under subpart I of part 841 of this chapter, a survivor annuity may be divided into a combination of former spouse annuities and a current spouse annuity so long as the aggregate total of the current and former spouse annuities does not exceed the maximum limitation in paragraph (a) of this section.
3. (c)Upon termination of former spouse annuity payments because of death or remarriage of the former spouse, or by operation of a court order, the current spouse will be entitled to a current spouse annuity or an increased current spouse annuity if—
   1. (1)The employee or Member died while employed in a position covered under FERS; or
   2. (2)The current spouse was married to the employee or Member continuously from the time of retirement and did not consent to an election not to provide a current spouse annuity; or
   3. (3)The current spouse married a retiree after retirement and the retiree elected, under § 842.612, to provide a current spouse annuity for that spouse in the event that the former spouse annuity payments terminate.