Code of Federal Regulations Title 20. Employees' Benefits § 20.219.60 When evidence of the employee's permanent home is required

(a) The claimant is applying for payments as the employee's wife, husband, widow, widower, parent, or child;  and

(b) The claimant's relationship to the employee depends upon the laws of the state where the employee had his or her permanent home when his or her wife or husband applied for an annuity or when the employee died.