45 CFR §400.208

1. (a)Federal funding is available for a State's expenditures for assistance and services to a family unit which includes a refugee parent or two refugee parents and one or more of their children who are nonrefugees, including children who are United States citizens.
2. (b)Federal funding is not available for a State's expenditures for assistance and services provided to a nonrefugee adult member of a family unit or to a nonrefugee child or children in a family unit if one parent in the family unit is a nonrefugee.