34 C.F.R. § 21.41
(a)
(b)
(1) The Department's answer must—
(2) If the answer is based on any alleged facts not in the record of the adversary adjudication, the Department's counsel shall include with the answer either—
(c)
(2)
(ii) The adjudicative officer shall grant further extensions if the Department's counsel and the applicant jointly request those extensions.
(Authority: 5 U.S.C. 504(c)(1))