38 C.F.R. § 51.58
Requirements and Standards applicable for payment of per diem
A State home must meet the requirements in subpart C and the standards in the applicable subpart to be recognized, certified, and receive per diem for that program of care:
(a) For nursing home care, subpart D.
(b) For domiciliary care, subpart E.
(c) For adult day health care, subpart F.