(a) Decision of hearing officer on the provision of FAPE. (1) Subject to paragraph (a)(2) of this section, a hearing officer's determination of whether a child received FAPE must be based on substantive grounds.
(2) In matters alleging a procedural violation, a hearing officer may find that a child did not receive a FAPE only if the procedural inadequacies--
(i) Impeded the child's right to a FAPE;
(ii) Significantly impeded the parent's opportunity to participate in the decision-making process regarding the provision of a FAPE to the parent's child; or
(iii) Caused a deprivation of educational benefit.
(3) Nothing in paragraph (a) of this section shall be construed to preclude a hearing officer from ordering an LEA to comply with procedural requirements under Sec. Sec. 300.500 through 300.536.