(F) Determination that behavior was a manifestation.--If the local educational agency, the parent, and relevant members of the IEP Team make the determination that the conduct was a manifestation of the child's disability, the IEP Team shall--

(i) conduct a functional behavioral assessment, and implement a behavioral intervention plan for such child, provided that the local educational agency had not conducted such assessment prior to such determination before the behavior that resulted in a change in placement described in subparagraph (C) or (G);

(ii) in the situation where a behavioral intervention plan has been developed, review the behavioral intervention plan if the child already has such a behavioral intervention plan, and modify it, as necessary, to address the behavior; and

(iii) except as provided in subparagraph (G), return the child to the placement from which the child was removed, unless the parent and the local educational agency agree to a change of placement as part of the modification of the behavioral intervention plan.