17 C.F.R. § 9.22 – Appeal brief.

(a) Time to file. Any person who has filed a notice of appeal in accordance with the provisions of § 9.20 must perfect the appeal by filing an appeal brief with the Proceedings Clerk within thirty days after service of the record of the exchange proceeding. The Commission may dismiss any appeal for which an appeal brief is not timely filed.
(b) Contents. Each appeal brief submitted to the Commission pursuant to this section must include, in the order indicated:
1. (1) A statement of the issues presented for review;
2. (2) A statement of the case. The statement must first indicate briefly the nature of the case and include a full description of the disciplinary, access denial or other adverse action. There must follow a clear and concise statement of all facts relevant to the consideration of the appeal, including, if known, each alleged act or omission forming the basis of the exchange action, with appropriate references to the record of the exchange proceeding;
3. (3) An argument. The argument may be preceded by a summary. The argument must contain the contentions of the appellant with respect to the issues presented, and the reasons therefor, and citations to relevant authorities and to parts of the record of the exchange proceeding; and
4. (4) A conclusion stating the precise relief sought.
(c) Length of appeal brief. Without prior leave of the Commission, the appeal brief may not exceed thirty-five pages, exclusive of any table of contents, table of cases, index and appendix containing transcripts of testimony, exhibits, statutes, rules, regulations or similar materials.