A. In the event the Department of Human Services has legal custody of an Indian child, and that child is placed with a tribally licensed or approved foster home, the state shall pay the costs of foster care in the same manner and to the same extent the state pays the costs of foster care to state-licensed or state-approved foster homes, provided that the tribe shall have entered into an agreement with the state pursuant to Section 8 herein, [FN1] which shall require tribal cooperation with state plans required by federal funding laws.