Section 4.322 - What must an appeal contain?(a) Each appeal must contain a written statement of the errors of fact and law upon which the appeal is based. This statement may be included in either the notice of appeal filed under § 4.321(a) or an opening brief filed under § 4.311(a) .(b) The notice of appeal must include the names and addresses of the parties served.73 FR 67288, Nov. 13, 2008