34 C.F.R. § 303.345
Interim IFSPs—provision of services before evaluations and assessments are completed
Early intervention services for an eligible child and the child's family may commence before the completion of the evaluation and assessments in § 303.321, if the following conditions are met:
(a) Parental consent is obtained.
(b) An interim IFSP is developed that includes—
(1) The name of the service coordinator who will be responsible, consistent with § 303.344(g), for implementing the interim IFSP and coordinating with other agencies and persons; and
(2) The early intervention services that have been determined to be needed immediately by the child and the child's family.
(c) Evaluations and assessments are completed within the 45-day timeline in § 303.310.