34 C.F.R. § 76.760
A State or a subgrantee may use funds under more than one program to support different parts of the same project if the State or subgrantee meets the following conditions:
(b) The State or subgrantee has an accounting system that permits identification of the costs paid for under each program.
(Authority: 20 U.S.C. 1221e-3, 3474, and 6511(a))