Appellate Briefing Checklist: Deadlines, Format, and Filing

A federal appellate briefing checklist covers seven things you have to get right before a judge reads a word of your argument: the filing deadline, the required sections and their order, length and formatting rules, cover color, redaction of personal identifiers, the appendix, and electronic filing and service. Miss any of them and the court can reject the brief or, if you are the appellant and blow the deadline, dismiss the appeal outright.

Filing Deadlines

Pin down your deadline before you draft anything. Under the Federal Rules of Appellate Procedure, the appellant has 40 days after the record is filed to serve and file the opening brief. The appellee has 30 days after the appellant’s brief is served. A reply brief is due within 14 days after the appellee’s brief is served, and in any event at least 3 days before oral argument unless the court allows otherwise.¹

If the appellant misses the deadline, the clerk sends a notice, and the court may dismiss the appeal if the notice goes unanswered. Courts can extend briefing deadlines for good cause, but they cannot extend the time to file a notice of appeal or a petition for permission to appeal.² File any motion for extension well before the deadline. Early requests fare much better than late ones.

Required Sections in Order

Federal Rule of Appellate Procedure 28 sets out the sections that must appear in the appellant’s brief, in this order.³

Disclosure statement, if Rule 26.1 requires one — for a corporate party, identifying parent corporations and any publicly held company owning 10% or more.
Table of contents with page references to every section.
Table of authorities, alphabetical, listing every case, statute, and other authority with the pages where each appears.⁴
Jurisdictional statement establishing the lower court’s authority and the appellate court’s authority to review, with the statutory basis, the filing dates showing timeliness, and a statement that the appeal is from a final judgment or otherwise qualifies.
Statement of the issues — a concise list of the legal questions.
Statement of the case with the relevant facts, procedural history, and rulings challenged, with citations to the record. Save advocacy for the argument.
Summary of argument. The rule says it must not simply copy the section headings.³
Argument. Each issue must include a statement of the applicable standard of review, your legal contentions, and citations to authority and the record.
Conclusion stating the exact relief sought.
Certificate of compliance when the brief uses a word or line limit rather than a page limit.

Standards of Review

The standard of review tells the court how much deference the lower court’s decision gets, and it shapes every argument you make. The main ones:

De novo. The appellate court decides the legal question from scratch, with no deference. This applies to pure questions of law, such as statutory interpretation or constitutional issues.
Clear error. The court defers to the trial court’s factual findings and overturns them only when, after reviewing the full record, it is left with a firm conviction that a mistake was made. This is the standard for most factual findings after a bench trial.
Abuse of discretion. The most deferential standard for non-factual rulings. The court asks whether the decision fell outside the range of reasonable choices. Evidentiary rulings and case-management decisions typically get this treatment.
Substantial evidence. Used primarily in reviews of administrative agency decisions. The court asks whether the record as a whole contains enough evidence that a reasonable mind could accept it as adequate to support the agency’s conclusion.

Identify the right standard early. If you are challenging a factual finding under clear error, you need to show a serious problem in the record, not just an alternative reading of the evidence.

Length Limits

A principal brief cannot exceed 30 pages. On the word-count method, the cap is 13,000 words, or 1,300 lines for monospaced typefaces. A reply brief gets half: 15 pages or 6,500 words. When you use a word or line limit, attach a certificate of compliance stating the count. Most practitioners rely on the word-processor’s count.⁵

Headings, footnotes, and quotations count toward the limit. The cover page, tables of contents and authorities, certificate of compliance, proof of service, and any addendum of statutes or rules do not.

Typeface, Spacing, and Margins

Print on 8½-by-11-inch paper. Double-space the text. Block quotations longer than two lines, headings, and footnotes may be single-spaced. Margins must be at least one inch on all four sides. Page numbers may appear in the margins, but no other text can.⁵

Proportionally spaced typefaces must be at least 14-point and must include serifs. Times New Roman works. Calibri does not for body text; sans-serif fonts are allowed only in headings and captions. A monospaced face like Courier cannot exceed 10½ characters per inch.⁵

Cover Color by Role

The color of the cover depends on who is filing:

Appellant: blue
Appellee: red
Intervenor or amicus curiae: green
Reply brief: gray
Supplemental brief: tan
Separately bound appendix: white

The cover must also display the case name, docket number, title of the brief, and names of counsel.⁵

Redacting Personal Identifiers

Appellate filings carry the same privacy protections that applied in the lower court. Under FRAP 25(a)(5), an appeal in a case governed by Federal Rule of Civil Procedure 5.2 (or its criminal or bankruptcy equivalents) continues to follow that rule on appeal.⁶ Before anything hits the public docket, redact:

Social Security numbers — last four digits only
Financial account numbers — last four digits only
Dates of birth — year only
Names of minors — initials only
Home addresses in criminal cases — city and state only

The trap is the appendix. A Social Security number buried in a medical record or a minor’s full name in a custody order can slip onto the public docket when you pull record excerpts. Courts have ordered documents re-sealed and imposed sanctions for redaction failures. Review every page of the appendix, not just the brief.

The Appendix

The appendix is a separate document filed alongside the brief so the court has direct access to the key parts of the record. Under FRAP 30, the appellant prepares it.⁷ It must include, at minimum:

The relevant docket entries from the proceedings below
The relevant portions of pleadings, jury charges, findings, or opinions
The judgment, order, or decision under review
Any other parts of the record the parties want the court to see

If any statutes, regulations, or constitutional provisions are central to the outcome, include the full text. The appendix needs sequential page numbering and its own table of contents so the court can locate what your brief cites.⁷

The cover of a separately bound appendix is white, not the color of the party’s brief. Unless filing is deferred, the appellant files 10 copies of the appendix with the brief and serves one copy on counsel for each separately represented party. Unrepresented parties proceeding without paying fees file four copies.⁷

Reply, Cross-Appeal, and Amicus Variations

Reply Briefs

The appellant may file a reply but is not required to. A reply is limited to 15 pages or 6,500 words.⁵ It is due within 14 days after the appellee’s brief is served, and no later than 3 days before oral argument.¹ Address only points raised in the appellee’s brief. Do not rehash the opening.

Cross-Appeal Briefs

When both sides appeal, the appellee’s brief does double duty: it responds to the appellant and presents the cross-appeal. That combined brief gets a higher word limit of 15,300 words. The appellant then files a response-and-reply brief capped at 13,000 words. The appellee may file a final reply limited to cross-appeal issues at half the standard volume.⁸

Amicus Curiae Briefs

The United States, its agencies, and state governments can file amicus briefs without permission. Anyone else needs the consent of all parties or leave of court. If you need the court’s permission, the motion must accompany the proposed brief and explain your interest and why the brief would help the court.⁹

An amicus brief can be no longer than half the maximum length of a party’s principal brief — 6,500 words. It must be filed within 7 days after the principal brief of the party being supported. An amicus that does not support either side files within 7 days after the appellant’s brief. The cover is green and must identify which party the amicus supports and whether it favors affirmance or reversal.¹¹

Electronic Filing and Service

Attorneys must file electronically unless the court grants an exception for good cause or a local rule provides otherwise. Unrepresented parties are not required to file electronically unless a court order or local rule says so. A document filed through your electronic-filing account, with your name on the signature block, counts as your signature.10Office of the Law Revision Counsel. Federal Rules of Appellate Procedure Rule 25 – Filing and Service

Electronic filings must be text-searchable PDFs. If you are scanning paper documents into the appendix, use a scanner with optical character recognition. A flat image scan will not meet the requirement. Courts may also set file-naming conventions and size limits, so check the local rules.

Some courts still require paper copies alongside the electronic filing. The number varies by jurisdiction and by document type. Verify the specific copy requirements for your court before the deadline.

Service

Filing is only half the job. Serve a copy of the brief and appendix on every other party. Electronic service through the court’s filing system is complete upon filing or sending, unless you get a notification that the document was not received.¹² After service, file a certificate of service stating the date and method of delivery to each party.

Consequences of Getting It Wrong

The most severe consequence: if the appellant does not file the brief on time, the court can dismiss the appeal after giving notice. Short of dismissal, courts have a range of tools. Under Federal Rule of Civil Procedure 11, an unsigned filing must be stricken unless the error is promptly corrected. If the court finds a filing violates Rule 11’s requirements on truthfulness and legal sufficiency, it can impose sanctions after notice and an opportunity to respond.¹³

Sanctions are limited to what is needed to deter the conduct from happening again. They can include orders to take corrective action, payment of a penalty to the court, or an award of the opposing party’s attorney fees caused by the violation. Monetary sanctions cannot be imposed on a represented party for legal arguments that lacked merit; those fall on the attorney.¹³

1
Office of the Law Revision Counsel. Federal Rules of Appellate Procedure Rule 31 – Serving and Filing Briefs
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Legal Information Institute. Federal Rules of Appellate Procedure Rule 26 – Computing and Extending Time
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Legal Information Institute. Federal Rules of Appellate Procedure Rule 28 – Briefs
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Cornell Legal Information Institute. Basic Legal Citation – 6-700 Tables of Authorities
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Legal Information Institute. Federal Rules of Appellate Procedure Rule 32 – Form of Briefs, Appendices, and Other Papers
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Legal Information Institute. Federal Rules of Appellate Procedure Rule 25 – Filing and Service
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Legal Information Institute. Federal Rules of Appellate Procedure Rule 30 – Appendix to the Briefs
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United States Court of Appeals for the Second Circuit. Federal Rules of Appellate Procedure Rule 28.1 – Cross-Appeals
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United States Court of Appeals for the Second Circuit. Federal Rules of Appellate Procedure Rule 29 – Brief of an Amicus Curiae
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United States Court of Appeals for the Second Circuit. Federal Rules of Appellate Procedure Rule 29 – Brief of an Amicus Curiae

Electronic Filing and Service
Attorneys must file electronically unless the court grants an exception for good cause or a local rule provides otherwise. Unrepresented parties are not required to file electronically unless a court order or local rule says so. A document filed through your electronic-filing account, with your name on the signature block, counts as your signature.10Office of the Law Revision Counsel. Federal Rules of Appellate Procedure Rule 25 – Filing and Service
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Office of the Law Revision Counsel. Federal Rules of Appellate Procedure Rule 25 – Filing and Service
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Legal Information Institute. Federal Rules of Civil Procedure Rule 11 – Signing Pleadings, Motions, and Other Papers; Representations to the Court; Sanctions