34 C.F.R. § 300.304
(b) Conduct of evaluation. In conducting the evaluation, the public agency must—
(1) Use a variety of assessment tools and strategies to gather relevant functional, developmental, and academic information about the child, including information provided by the parent, that may assist in determining—
(c) Other evaluation procedures. Each public agency must ensure that—
(1) Assessments and other evaluation materials used to assess a child under this part—
(7) Assessment tools and strategies that provide relevant information that directly assists persons in determining the educational needs of the child are provided.
(Authority: 20 U.S.C. 1414(b)(1)-(3), 1412(a)(6)(B))