20 U.S.C. § 3417

There shall be in the Department an Office of Special Education and Rehabilitative Services, to be administered by the Assistant Secretary for Special Education and Rehabilitative Services appointed under section 3412(b) of this title. Notwithstanding the provisions of section 3472 of this title, the Secretary shall delegate to the Assistant Secretary all functions, other than administrative and support functions, transferred to the Secretary under sections 3441(a)(1) of this title (with respect to the bureau for the education and training of the handicapped), 3441(a)(2)(H) of this title, and 3441(a)(4) of this title.