5 C.F.R. § 838.241 Cost-of-living adjustments.
Title 5 - Administrative Personnel
Unless otherwise provided in the court order, when the terms of the court order or §838.621 provide for cost-of-living adjustments on the former spouse's payment from employee annuity, the cost-of-living adjustment will be effected at the same time and at the same percentage rate as the cost-of-living adjustment in the employee annuity.
Title 5: Administrative Personnel
PART 838—COURT ORDERS AFFECTING RETIREMENT BENEFITS
Subpart B—Procedures for Processing Court Orders Affecting Employee Annuities
Procedures for Computing the Amount Payable
§ 838.241 Cost-of-living adjustments.