Code of Federal Regulations Title 42. Public Health § 42.1007.5 Single, identifiable entity requirements of Unit

(1) Be a single organization reporting to the Unit director;

(2) Operate under a budget that is separate from that of its parent agency;  and

(3) Have the headquarters office and any field offices each in their own contiguous space, unless the Unit demonstrates to OIG that circumstances warrant a different arrangement for certain employees.