34 C.F.R. § 303.443
(c) Impartial hearing officer.
(1) At a minimum, a hearing officer—
(i) Must not be—
(f) Exceptions to the timeline. The timeline described in paragraph (e) of this section does not apply to a parent if the parent was prevented from filing a due process complaint due to—
(2) The lead agency's or EIS provider's failure to provide the parent information that was required under this part to be provided to the parent.
(Approved by Office of Management and Budget under control number 1820-NEW)
(Authority: 20 U.S.C. 1415(f)(1)(A), 1415(f)(3)(A)-(D), 1439)