31 C.F.R. § 29.346 Reduction for survivor benefits.
Title 31 - Money and Finance: Treasury
(a) If a retiree designates a base for a survivor annuity that is greater than or equal to the unreduced Federal Benefit Payment, the applicable plan's annuity reduction formula is applied to the unreduced Federal Benefit Payment to determine the reduced Federal Benefit Payment. (See example 10 of appendix A of this subpart.) (b) If a retiree designates a base for a survivor annuity that is less than the amount of the Federal Benefit Payment, the entire survivor reduction applies to the Federal Benefit Payment to determine the reduced Federal Benefit Payment.
Title 31: Money and Finance: Treasury
PART 29—FEDERAL BENEFIT PAYMENTS UNDER CERTAIN DISTRICT OF COLUMBIA RETIREMENT PROGRAMS
Subpart C—Split Benefits
Calculation of the Amount of Federal Benefit Payments
§ 29.346 Reduction for survivor benefits.

