34 C.F.R. § 303.345
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:
(b) An interim IFSP is developed that includes—
(c) Evaluations and assessments are completed within the 45-day timeline in § 303.310.
(Authority: 20 U.S.C. 1436(c))