22 CFR §19.9-1

1. (a)Unless otherwise expressly provided by a spousal agreement under § 19.7 or a court order under § 19.6, a person who, after February 15, 1981, becomes a former spouse of a participant (or former participant who separated from the Service after February 15, 1981) and who has not remarried prior to becoming 60 years of age, becomes entitled to a monthly pension benefit effective on a date determined under § 19.9-2 in an amount determined under § 19.9-3.
2. (b)A former spouse shall not be qualified for a pension under this subsection if, before the commencement of that pension, the former spouse remarries before becoming 60 years of age.
3. (c)A pension benefit under this section is treated the same as a survivor annuity for purposes of § 19.11-5(b): a former spouse who elects to receive a pension under this section must waive simultaneous receipt of any survivor annuity.