22 C.F.R. § 19.10-5
(e) Payment for additional survivor annuity.
(3) In the event of the disqualification of a beneficiary for an additional survivor annuity because of death, remarriage prior to age 60 or divorce from the principal and failure to meet the definition of “former spouse,” or in the event of an authorized reduction or cancellation of an election for an additional survivor annuity, the monthly payment for such discontinued or reduced additional survivor annuity will be discontinued or reduced, as appropriate, effective at the beginning of the first month following termination or reduction of the benefit. Except as otherwise specified in paragraph (b) of this section, any amount paid for such discontinued or reduced benefit by a participant or former participant in excess of the minimum monthly payments described above shall be refunded to the participant or former participant with interest calculated at the annual rate used in the last evaluation of the System or at such higher rate as may be authorized by M/COMP/FO as will not cause a loss to the Fund. The following table illustrates the minimum monthly payments schedule in effect February 15, 1981.
| Age of principal and beneficiary on effective date of spousal agreement | Minimum monthly payment required to provide an additional survivor annuity of $100 per month. | |
|---|---|---|
| Without COLA | With COLA | |
| 40 | $7.49 | $12.34 |
| 50 | 14.18 | 22.01 |
| 60 | 23.55 | 33.90 |
| 70 | 35.57 | 47.12 |