37 CFR 351.11: Rebuttal proceedings.

Written rebuttal statements shall be filed at a time designated by the Copyright Royalty Judges upon conclusion of the hearing of the direct case, in the same form and manner as the written direct statement, except that the claim or the requested rate shall not have to be included if it has not changed from the written direct statement. Further proceedings at the rebuttal stage shall follow the schedule ordered by the Copyright Royalty Judges.