20 CFR § 416.1832
When we consider your marriage ended
February 18, 2021
We consider your marriage ended when—
(a) Your spouse dies;
(b) Your divorce or annulment becomes final;
(c) We decide that either of you is not a spouse of the other for purposes of husband's or wife's social security insurance benefits, if we considered you married only because of §416.1806(a)(2); or
(d) You and your spouse stop living together, if we considered you married only because of §416.1806(a)(3).
[45 FR 71795, Oct. 30, 1980. Redesignated at 46 FR 29211, May 29, 1981; 46 FR 42063, Aug. 19, 1981, as amended at 60 FR 16376, Mar. 30, 1995]