CFR›Title 20›Chapter II›Part 233 ContainsSections 233.1–233.4CorpusDaily eCFRDisplayed edition2026-04-15Last updated2026-04-15 PART 233—REDUCTION IN THE WINDFALL BENEFIT ANNUITY COMPONENT Sections 233.1 § 233.1 When reduction must be made. 233.2 § 233.2 Computation of reduction. 233.3 § 233.3 Reduction of retroactive and other similar payments. 233.4 § 233.4 Reconsideration of the reduction computation. AuthoritySec. 1122(c), Pub. L. 97-35, 95 Stat. 638 (45 U.S.C. 231f).Source46 FR 50786, Oct. 15, 1981, unless otherwise noted. Previous 230 Part 230—Months Annuities Not Payable by Reason of Work Next 234 Part 234—Lump-Sum Payments