5 C.F.R. § 838.441 Computing lengths of service.
Title 5 - Administrative Personnel
(a) The smallest unit of time that OPM will calculate in computing a formula in a court order is a month, even where the court order directs OPM to make a more precise calculation. (b) If the court order states a formula using a specified simple or decimal fraction other than twelfth parts of a year, OPM will use the specified number to perform simple mathematical computations.
Title 5: Administrative Personnel
PART 838—COURT ORDERS AFFECTING RETIREMENT BENEFITS
Subpart D—Procedures for Processing Court Orders Affecting Refunds of Employee Contributions
Procedures for Computing the Amount Payable
§ 838.441 Computing lengths of service.
