20 CFR 10.415 : Employees' Benefits (§ 1.1 To Parts 1011-1099) — (§ 1.1 To Parts 376-399) — Office Of Workers' Compensation Programs, Department Of Labor (§ 1.1 To Parts 72-199) — Federal Employees' Compensation Act (§ 10.0 To § 25.203) — Claims For Compensation Under The Federal Employees' Compensation Act, As Amended (§ 10.0 To § 10.916) — Compensation And Related Benefits (§ 10.400 To § 10.441) — Compensation For Death (§ 10.410 To § 10.417) — What must a beneficiary do if the number of beneficiaries decreases?

The circumstances under which compensation on account of death shall be terminated are described in 5 U.S.C. 8133(b). A beneficiary in a claim for death benefits should promptly notify OWCP of any event which would affect his or her entitlement to continued compensation. The terms “marriage” and “remarriage” include common-law marriage as recognized and defined by State law in the State where the beneficiary resides. If a beneficiary, or someone acting on his or her behalf, receives a check or electronic payment which includes payment of compensation for any period after the date when entitlement ended, he or she must promptly return such funds to OWCP.