The United States Courts of Appeals are the thirteen federal courts that sit between the district trial courts and the Supreme Court, reviewing whether trial courts and federal agencies applied the law correctly. Congress created them through the Judiciary Act of 1891 to ease the Supreme Court’s caseload.1United States Courts. The Evarts Act: Creating the Modern Appellate Courts Roughly 179 authorized judgeships handle close to 40,000 new appeals each year, and fewer than 10 percent produce a reversal of the lower court.2United States Courts. Federal Judicial Caseload Statistics 2024 That figure tells you a lot about the steep odds facing anyone who files.
The Thirteen Circuits
Federal law divides the country into thirteen judicial circuits.3Office of the Law Revision Counsel. 28 U.S. Code 41 – Number and Composition of Circuits Eleven are numbered regional circuits, each covering a cluster of states. The Second Circuit covers Connecticut, New York, and Vermont. The Ninth Circuit is the largest, spanning Alaska, Arizona, California, Hawaii, Idaho, Montana, Nevada, Oregon, and Washington, plus Guam and the Northern Mariana Islands. Judges regularly sit at courthouses throughout their region rather than only at the administrative headquarters.
The twelfth circuit is the District of Columbia Circuit in Washington. Because Congress often gives it exclusive authority over challenges to federal agency rules, it handles a disproportionate share of the nation’s administrative law disputes. When someone sues to block a major federal regulation, the case frequently lands there.
The thirteenth is the United States Court of Appeals for the Federal Circuit. Rather than covering a region, it has nationwide jurisdiction over specific subjects: patent disputes, international trade cases, certain government contract claims, veterans’ benefits appeals, and federal employee matters, among others.4U.S. Court of Appeals for the Federal Circuit. Types of Cases the Federal Circuit Handles5Office of the Law Revision Counsel. 28 U.S. Code 1295 – Jurisdiction of the United States Court of Appeals for the Federal Circuit
What These Courts Have Authority to Hear
The primary workload is appeals from final decisions of federal district courts. Under federal law, the regional circuits must hear appeals from any final judgment entered by a district court unless the Supreme Court has direct review.6Office of the Law Revision Counsel. 28 U.S. Code 1291 – Final Decisions of District Courts That covers criminal convictions and sentences, civil judgments in contract and tort cases, constitutional challenges, and everything in between.
These courts also review decisions by federal administrative agencies. When agencies like the National Labor Relations Board or the Environmental Protection Agency issue orders, the affected party can seek review in a court of appeals rather than a district court. The court asks whether the agency acted within its legal authority and whether its factual findings had adequate evidentiary support.
Interlocutory Appeals
Not every appeal has to wait until the case is completely over. Federal law lets a party immediately appeal orders granting or denying injunctions, orders appointing receivers, and certain admiralty rulings.7Office of the Law Revision Counsel. 28 U.S. Code 1292 – Interlocutory Decisions Beyond those categories, a district judge can certify any order for immediate appeal if it involves a controlling legal question where reasonable judges could disagree and an early appeal could materially shorten the litigation. The court of appeals then decides at its discretion whether to take the case, and the requesting party must apply within ten days of the order.
A narrow judge-made doctrine, the collateral order rule, also allows appeal of rulings that conclusively decide an important legal question separate from the merits and that could not be corrected after final judgment.
Extraordinary Writs
In rare circumstances, a party can ask the court of appeals for a writ of mandamus or prohibition, ordering a lower court judge to take or refrain from a specific action. The petition must explain the relief sought, the issues, the relevant facts, and why the writ should issue.8Legal Information Institute. Federal Rules of Appellate Procedure Rule 21 – Writs of Mandamus and Prohibition, and Other Extraordinary Writs Courts grant these sparingly, and they exist for situations where a normal appeal after final judgment would come too late.
The Judges
Circuit judges are Article III judges. The president nominates them, the Senate confirms them, and once seated they hold their positions for life, removable only through impeachment.9Constitution Annotated. Article III Judicial Branch10United States Courts. Types of Federal Judges That life tenure is deliberate. It insulates judges from political pressure so they can decide cases based on the law rather than on who appointed them. Congress has authorized roughly 179 active judgeships across the thirteen circuits.11United States Courts. Status of Article III Judgeships – Judicial Business 2023
Judges who meet certain age and service requirements can take senior status, which reduces their caseload but keeps them on the bench. When a judge goes senior, the seat opens for a new presidential appointment. Behind each judge is a small team of law clerks and staff attorneys who research legal issues, review filings, draft memoranda, and propose draft opinions.12United States Courts. Legal Careers
Standards of Review
A court of appeals does not start from scratch. How much deference the panel gives to the lower court depends on the type of decision under review, and this is where many appeals are won or lost before the briefs are even written.
- De novo review applies to pure questions of law, such as whether a statute means what the trial court said it means. The appellate court gives no deference and substitutes its own judgment. This is the standard most favorable to appellants.
- Clear error review applies to findings of fact made by a trial judge sitting without a jury. The appellate court will overturn those findings only if, after reviewing the record, it is left with a definite and firm conviction that a mistake was made. If the evidence could reasonably support either conclusion, the trial judge’s choice stands.
- Abuse of discretion review covers judgment calls, like whether to admit evidence or grant a continuance. The appellate court overturns these only if the trial judge’s decision was so far outside the range of reasonable choices that no reasonable judge would have made it. This is the hardest standard for an appellant to meet.
- Substantial evidence review applies to a federal agency’s factual findings. The court asks whether a reasonable mind could accept the evidence in the administrative record as adequate to support the agency’s conclusion, a lower threshold than the preponderance standard used in civil trials.13Legal Information Institute. Substantial Evidence
Knowing which standard applies to your issue is one of the most important parts of evaluating whether an appeal is worth pursuing. A case that lost on a factual dispute at trial faces a much steeper climb than one where the judge misread a statute.
How an Appeal Moves Through the Court
The Notice of Appeal and the Deadlines
Every appeal begins with a notice of appeal filed in the district court where the original decision was entered. It is a short document identifying the parties, the judgment appealed, and the court of appeals that will hear the case. The deadline is unforgiving. In a civil case, you have 30 days from entry of judgment. In a criminal case, a defendant has 14 days.14Legal Information Institute. Federal Rules of Appellate Procedure Rule 4 – Appeal as of Right, When Taken Courts treat these deadlines as jurisdictional. Miss the date and the right to appeal is almost certainly gone, even for a good reason.
Fees and Fee Waivers
Filing an appeal costs $605, consisting of a $600 docketing fee and a $5 statutory fee.15United States Courts. Court of Appeals Miscellaneous Fee Schedule If you cannot afford it, you can ask the court to let you proceed in forma pauperis by submitting an affidavit detailing your financial situation. The court can waive the fee entirely for non-prisoners who show inability to pay.16Office of the Law Revision Counsel. 28 U.S. Code 1915 – Proceedings In Forma Pauperis Prisoners who file in forma pauperis still have to pay the full fee through installments deducted from their prison accounts.
The Record on Appeal
The court of appeals does not hear new testimony or accept new evidence. It works from the record created in the lower court: the original filings, exhibits, and trial transcripts. The appellant coordinates with the court reporter to prepare and include transcripts. Ordinary transcripts typically cost several dollars per page, so a lengthy trial can produce thousands of dollars in transcription costs alone.
Any nongovernmental corporate party must also file a disclosure statement identifying its parent corporation and any publicly held company that owns 10 percent or more of its stock, so judges can identify financial conflicts and recuse themselves if necessary.17Legal Information Institute. Federal Rules of Appellate Procedure Rule 26.1 – Corporate Disclosure Statement
Briefs and Oral Argument
Attorneys file briefs and other documents through the Case Management/Electronic Case Files (CM/ECF) system.18United States Courts. Electronic Filing (CM/ECF) The appellant files an opening brief identifying the legal errors below, supported by citations to the record and legal authority. The appellee responds. The appellant can file a shorter reply. Each circuit sets its own formatting requirements and page or word limits.
Non-parties sometimes weigh in through amicus curiae briefs. The federal government and state governments can file these freely. Other organizations or individuals need either consent of all parties or leave of the court. Amicus briefs are most common in cases with broad legal consequences.
Once briefing is complete, the court assigns the case to a three-judge panel.19Office of the Law Revision Counsel. 28 U.S. Code 46 – Assignment of Judges and Division of Business Many panels decide from the briefs alone without scheduling argument. When argument is held, each side typically gets up to 30 minutes.20Legal Information Institute. Federal Rules of Appellate Procedure Rule 34 – Oral Argument Sessions are less about speeches than about judges pressing the lawyers on the weakest points of their positions. Most appeals are won or lost in the briefs.
Several circuits also run mediation programs that can resolve appeals before briefing is complete. The court’s mediation office screens cases and selects those that seem amenable to settlement. Participation is mandatory when the court selects a case, but the mediation itself is confidential and non-binding, and no details reach the judges.
How the Panel Decides
After argument or submission on the briefs, the three-judge panel meets in a private conference to reach a decision. One judge is assigned to write the opinion. Straightforward cases can produce opinions within weeks. Complex ones may take many months. The panel can affirm the lower court, reverse it, or remand the case for further proceedings, often with specific instructions.
Not all opinions carry equal weight. The court designates some opinions as published, meaning they become binding precedent within the circuit and must be followed by future panels and district courts in that region. Most decisions are designated unpublished or non-precedential. They resolve the specific dispute but do not create new binding law. Since 2007, federal rules have prohibited courts from banning citation of unpublished opinions altogether, so you can cite them, though their persuasive value is limited.21Legal Information Institute. Federal Rules of Appellate Procedure Rule 32.1 – Citing Judicial Dispositions
If You Lose: Rehearing, En Banc, and the Supreme Court
Two options exist before heading to the Supreme Court. The first is a petition for panel rehearing, which asks the same three judges to reconsider. You must identify specific points of law or fact the panel overlooked. The deadline is 14 days after entry of judgment, or 45 days in cases involving the federal government.22Legal Information Institute. Federal Rules of Appellate Procedure Rule 40 – Panel Rehearing and En Banc Determination
The second is en banc rehearing, where all active judges on the circuit rehear the case together. A majority of the circuit’s active judges must vote to grant it.19Office of the Law Revision Counsel. 28 U.S. Code 46 – Assignment of Judges and Division of Business The rules describe en banc review as disfavored, ordinarily granted only when the panel decision conflicts with a prior decision of the same circuit, the Supreme Court, or another circuit, or when the case involves a question of exceptional importance. When the full court sits, its decision replaces the panel opinion and becomes the circuit’s definitive word on the issue.
A party who still loses can petition the United States Supreme Court for a writ of certiorari, filed within 90 days after the court of appeals enters its judgment, or within 90 days after the denial of a timely rehearing petition.23Legal Information Institute. Supreme Court Rule 13 – Review on Certiorari, Time for Petitioning The Supreme Court is not required to take the case and grants certiorari in a small fraction of petitions, typically choosing cases that involve splits between circuits or issues of national importance.
If the Supreme Court declines, the court of appeals decision stands as the final word. Within that circuit it binds all lower federal courts going forward. Outside the circuit, other courts of appeals may find it persuasive but are not required to follow it, which is how circuit splits form and why the Supreme Court occasionally steps in to resolve them.