Section 1437 (a) (9) (A) (ii) (II)

in the case of a child who may be eligible for such preschool services, with the approval of the family of the child, convene a conference among the lead agency, the family, and the local educational agency not less than 90 days (and at the discretion of all such parties, not more than 9 months) before the child is eligible for the preschool services, to discuss any such services that the child may receive; and