If the child is a ward of the state and is not residing with his or her parent, the agency shall, pursuant to clause (iii) of subparagraph (D) of paragraph (1) of subsection (a) of Section 1414 of Title 20 of the United States Code, make reasonable efforts to obtain the informed consent from the parent, as defined in Section 56028, of the child for an initial assessment to determine whether the child is an individual with exceptional needs.