When a divorced spouse can no longer be included in computing an annuity under the overall minimum.

A divorced spouse's inclusion in the computation of the overall minimum rate ends the earlier of: (a) The month before the month in which the divorced spouse dies; or (b) The month before the month the employee dies; or (c) The month before the month in which the divorced spouse remarries; or (d) The month before the month in which the divorced spouse becomes entitled to a retirement or disability benefit under the Social Security Act based upon a primary insurance amount which is equal to or exceeds the divorced spouse annuity before reduction for age.