Immediate family.

CFR · 2024-01-01 · US · Title 12

The term (a) Such person's spouse, father, mother, children, brothers, sisters, and grandchildren; (b) The father, mother, brothers, and sisters of such person's spouse; and (c) The spouse of a child, brother, or sister of such person.

official document · source cfr-2024 · id 12:§ 161.24