20 C.F.R. § 222.40 When determinations of relationship are made for parent, grandchild, brother or sister.
Title 20 - Employees' Benefits
(a) Parent. The claimant's relationship as a parent of the employee is determined when the claimant applies for an annuity or for lump-sum payments. (b) Grandchild. The claimant's relationship as a grandchild, rather than as a child, of the employee is determined when the claimant applies for lump-sum payments. (c) Brother or sister. The claimant's relationship as a brother or sister of the employee is determined when the claimant applies for lump-sum payments.
Title 20: Employees' Benefits
PART 222—FAMILY RELATIONSHIPS
Subpart E—Relationship as Parent, Grandchild, Brother or Sister
§ 222.40 When determinations of relationship are made for parent, grandchild, brother or sister.
