45 C.F.R. § 98.82

Tribal applicants shall coordinate the development of the Plan and the provision of services, to the extent practicable, as required by §§ 98.12 and 98.14 and:

(a) To the maximum extent feasible, with the Lead Agency in the State or States in which the applicant will carry out the CCDF program; and

(b) With other Federal, State, local, and tribal child care and childhood development programs.