Computing lengths of service.
5 C.F.R. § 838.441
in effectEffective: 2024-07-01(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.
Source: eCFRURL: https://www.ecfr.gov/api/versioner/v1/full/2024-07-01/title-5.xmlFetched: 7/26/2026
