Appeals filed pursuant to this subpart shall be determined upon cross motions for summary judgment unless the matter is heard under subpart B of this part in accordance with § 283.26. Cross motions for summary judgment shall be filed by the parties along with the appeal petition and answer or in accordance with the schedule established by the ALJ pursuant to § 283.29. Motions for summary judgment shall address the issues raised by the pleadings and may be supported by declarations. Motions and accompanying briefs in support of summary judgment shall not exceed 35 pages excluding exhibits unless otherwise authorized by the ALJ. Reply briefs may be filed by the parties in accordance with the schedule established by the ALJ. Reply briefs may not exceed 15 pages in length, excluding exhibits.