(b) Such plan shall not be approved unless:
(i) it complies with the provisions of this section;
(ii) it demonstrates that child welfare services included in the plan are appropriate to meet the assessed needs of the children and families for whom the social services district is or may be responsible;
(iii) it is consistent with applicable provisions of this chapter and regulations of the department promulgated thereunder; and
(iv) it is in the format and includes such standardized information and data as may be required by the department to effectively evaluate such plans.