PUBLIC LAW 101-189—NOV. 29, 1989 103 STAT. 1585 "(b) REGUIATIONS DETERMINING AMOUNT OF REDUCTION.— Regula- tions for the purposes of subsection (a) shall be prescribed by the Secretary of ]>efense. Those regulations shall be based upon assump- tions used by the Department of Defense Retirement Board of Actuaries in the valuation of military retirement and survivor benefit programs under chapter 74 of this title (including assump- tions relating to mortality, interest rates, and inflation) and shall ensure the following: "(1) That reductions in retired pay under this section are made in amounts sufficient to provide that the Supplemental Survivor Benefit Plan operates on an actuarially neutral basis. "(2) That such reductions are stated, with respect to the base amount (under the Survivor Benefit Plan) of any person, as a constant percentage of that base amount. "(3) That the amounts of such reductions in retired pay of persons participating in the Supplemental Survivor Benefit Plan (stated as a percentage of base amount)— "(A) are based on the age of the participant at the time participation in that Plan is first effective under this sub- chapter; and "(B) are not determined by any other demc^aphic dif- ferentiation among participants in the Plan. "(4) That such reductions are otherwise determined in accord- ance with generally accepted actuarial principles and practices. " (c) SUSPENSION OF REDUCTION WHEN THERE Is No SPOUSE BENE- FICIARY,—A reduction in retired pay under this section shall not be made in the case of any person during any month in which there is > no eligible spouse or former spouse beneficiary. "(d) ADJUSTMENTS IN AMOUNT OF REDUCTION.—Whenever the amount of the reduction in retired pay of a participant in the Survivor Benefit Plan is increased under section 1452(h) of this title or recomputed under section 1452(i) of this title, the amount of the reduction in that retired pay under this section shall be increased or recomputed, as the case may be, at the same time and in the same manner as that increase or recomputation. "(e) ADMINISTRATIVE PROVISIONS.—The provisions of subsections (d) and (f) of section 1452 of this title apply with respect to the participation of a person in the Supplemental Survivor Benefit Plan in the same manner that those provisions apply under the Survivor Benefit Plan. "§ 1460a. Incorporation of certain administrative provisions "(a) APPLICABILITY OF CERTAIN PROVISIONS OF SBP LAW.— The provisions of section 1449, 1452(g), 1453, and 1454 of this title are applicable to a person eligible to make an election, and to an election, under this subchapter in the same manner as if made under subchapter II. "(b) OTHER APPLICABLE PROVISIONS. —Elxcept to the extent other- wise provided in regulations prescribed under section 1460b of this title, the provisions of subsections (h), (i), and (1) of section 1450 of this title apply to supplemental spouse annuities in the same manner that those provisions apply to annuities under the Survivor Benefit Plan. '*§ 1460b. Regulations "The President shall prescribe regulations to carry out this sub- President of U.S. chapter. Those regulations shall, so far as practicable, be uniform
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