45 CFR § 303.107 - Requirements for cooperative arrangements.
The State must ensure that all cooperative arrangements:
(a) Contain a clear description of the specific duties, functions and responsibilities of each party;
(b) Specify clear and definite standards of performance which meet Federal requirements;
(c) Specify that the parties will comply with title IV-D of the Act, implementing Federal regulations and any other applicable Federal regulations and requirements;
(d) Specify the financial arrangements including budget estimates, covered expenditures, methods of determining costs, procedures for billing the IV-D agency, and any relevant Federal and State reimbursement requirements and limitations;
(f) Specify the dates on which the arrangement begins and ends, any conditions for revision or renewal, and the circumstances under which the arrangement may be terminated.