5 C.F.R. § 843.209 Waiver of notification requirement.
Title 5 - Administrative Personnel
The current and/or former spouse notification requirement will be waived upon a showing that the current and/or former spouse's whereabouts cannot be determined. A request for waiver on this basis must be accompanied by— (a) A judicial or administrative determination that the current and/or former spouse's whereabouts cannot be determined; or (b) Affidavits by the former employee and two other persons, at least one of whom is not related to the former employee, attesting to the inability to locate the current and/or former spouse and stating the efforts made to locate the current and/or former spouse.
Title 5: Administrative Personnel
PART 843—FEDERAL EMPLOYEES RETIREMENT SYSTEM—DEATH BENEFITS AND EMPLOYEE REFUNDS
Subpart B—One-time Payments
§ 843.209 Waiver of notification requirement.