A survivor annuity payable under this section shall be reduced by an amount equal to any survivor annuity payments made to the former spouse under section 2033 of this title.
The entitlement of a former spouse to a survivor annuity under this section terminates on the last day of the month before the former spouse’s death or remarriage before attaining age 55. The entitlement of a former spouse to such a survivor annuity shall be restored on the date such remarriage is dissolved by death, annulment, or divorce.
A survivor annuity under this section shall not be payable unless appropriate written application is provided to the Director, complete with any supporting documentation which the Director may by regulation require. Any such application shall be submitted not later than April 1, 1989. The Director may waive the application deadline under the preceding sentence in any case in which the Director determines that the circumstances warrant such a waiver.
Upon approval of an application provided under paragraph (1), the appropriate survivor annuity shall be payable to the former spouse with respect to all periods before such approval during which the former spouse was entitled to such annuity under this section, but in no event shall a survivor annuity be payable under this section with respect to any period before October 1, 1986.
Notwithstanding subsection (d)(1), the deadline by which an application for a survivor annuity must be submitted shall not apply in cases in which a former spouse’s entitlement to such a survivor annuity is restored under subsection (b)(1) or (c)(2).