U.S. Courts of Appeals (Circuit Courts)

The thirteen U.S. Courts of Appeals are the intermediate layer of the federal judiciary — the courts that review most federal trial court decisions before any possibility of Supreme Court review. For the vast majority of litigants, the circuit court is the court of last resort: the Supreme Court accepts fewer than 1% of the petitions it receives each year, meaning the circuit courts' rulings are final law in their regions on virtually every question they decide. Understanding how the appellate system works is essential for anyone involved in federal litigation, regulatory disputes, or policy advocacy.

Current Law (2026)

Legal Authority

• 28 U.S.C. § 41 — Establishment of circuits (creates the 11 numbered circuits and the D.C. Circuit; each court of appeals covers the district courts within its circuit)
• 28 U.S.C. § 43 — Creation of courts (each circuit has a court of appeals; the Federal Circuit is a court of appeals with nationwide subject-matter jurisdiction rather than geographic jurisdiction)
• 28 U.S.C. § 44 — Appointment of circuit judges (judges are appointed by the President with Senate confirmation and serve during good behavior; the number of judges per circuit is set by statute)
• 28 U.S.C. § 46 — Assignment of judges; en banc (cases heard by panels of three judges; a circuit may hear a case en banc, meaning before all active judges, to resolve questions of exceptional importance or correct prior panel decisions)
• 28 U.S.C. § 48 — Terms of court (courts of appeals hold court in the principal city of their circuit and elsewhere as they direct; the Federal Circuit sits in Washington, D.C.)
• 28 U.S.C. § 1291 — Final decisions (courts of appeals have jurisdiction over final decisions of district courts; this is the primary appellate pathway — a "final decision" is one that ends the litigation on the merits)
• 28 U.S.C. § 1292 — Interlocutory decisions (courts of appeals may hear certain non-final orders: injunctions, receiverships, admiralty, and district court certifications of controlling questions of law)
• 28 U.S.C. § 1295 — Federal Circuit jurisdiction (exclusive jurisdiction over appeals from the Court of International Trade, Court of Federal Claims, Patent Trial and Appeal Board, Merit Systems Protection Board, and district court patent cases)
• 28 U.S.C. § 1296 — Review of certain agency orders (courts of appeals review final orders of specified agencies — e.g., the D.C. Circuit has exclusive jurisdiction over many major federal agency rules under specific statutes)

How It Works

Most appeals begin with a notice of appeal filed in the district court within 30 days of the final judgment (60 days if the United States is a party). The district court record is transmitted to the circuit court, and parties submit written briefs — the appellant goes first, the appellee responds, then an optional reply — before a three-judge panel that may schedule 10–15 minutes of oral argument per side in about a third of civil cases and a higher proportion of criminal and constitutional cases. The panel then issues a written opinion binding as precedent throughout the circuit. When a panel decision conflicts with an earlier circuit precedent or raises an exceptionally important legal question, a party may petition for rehearing en banc — a hearing before all active circuit judges — which is granted in about 1% of requests. An en banc decision overrides prior panel decisions and sets circuit-wide precedent that can only be changed by another en banc ruling or by the Supreme Court.

The thirteen circuits divide into geographic and subject-matter jurisdictions. The First through Eleventh Circuits cover geographic regions (the Ninth Circuit — the largest — covers nine western states and two territories; the Eleventh Circuit covers Florida, Georgia, and Alabama). The D.C. Circuit is small in geographic scope but outsized in policy importance: it has primary jurisdiction over challenges to most major federal agency regulations under many agency-specific statutes, making it the most important court in the country for administrative and regulatory law. The Federal Circuit has nationwide jurisdiction based on subject matter rather than geography, with exclusive appellate authority over patent cases from all district courts, government contract claims, trade cases, federal employee appeals, and veterans benefits. When two or more circuits reach opposite conclusions on the same legal question — a "circuit split" — different litigants in different parts of the country face different legal rules on identical issues; circuit splits are the primary driver of Supreme Court certiorari grants, as the Court accepts cases largely to resolve conflicts and establish uniform national law, meaning a split can persist for years and the circuit you litigate in can determine the outcome of your case on federal questions.

Key Numbers / Thresholds

• 30 days to file a notice of appeal after judgment (60 days if the U.S. is a party)
• 40 days to file the opening brief after the record is filed
• 10–15 minutes per side at oral argument (typical)
• ~7,000 petitions for certiorari filed with the Supreme Court annually; approximately 70–80 granted
• 179 authorized active circuit judgeships across all 13 circuits
• Ninth Circuit: 29 authorized judgeships (largest); First Circuit: 6 (smallest)
• $605 filing fee for appeal in civil cases

How It Affects You

If you lost in federal district court: Filing a notice of appeal within 30 days of judgment (60 days if the government is a party) is the start of your circuit court path. The circuit court is almost always the final stop — the Supreme Court grants fewer than 80 petitions per year from thousands of requests. Budget for 9–18 months from notice of appeal to decision. Most cases are decided on briefs alone; oral argument is a privilege, not a right. The circuit where your district court sits determines which court hears your appeal and which precedents govern.

If your company is subject to federal agency regulation: Major agency rules — EPA regulations, FCC orders, FERC rate decisions, FTC enforcement actions — are often reviewable directly in the D.C. Circuit without first going through a district court. Specific statutes designate the D.C. Circuit as the exclusive review forum for the nation's most consequential regulatory decisions. After Loper Bright (2024), circuit courts must independently interpret ambiguous statutes rather than deferring to agency interpretations — giving regulated industries more opportunity to challenge regulations they believe exceed statutory authority.

If your company has patent rights or is accused of infringement: All patent appeals from district courts go to the U.S. Court of Appeals for the Federal Circuit, regardless of where the case was tried. This creates a single, nationally uniform patent law — unlike most other areas of federal law where circuit splits are common. The Federal Circuit's approach to claim construction, obviousness, and injunctive relief in patent cases shapes the entire ecosystem of U.S. patent litigation and licensing strategy.

If you're a criminal defendant: Every federal conviction carries an automatic right to appeal to the circuit court. You don't need to prove your case was wrongly decided on the merits to file — you file a notice of appeal and the government must respond. Common appellate issues: ineffective assistance of counsel, evidentiary errors, sentencing guidelines disputes, and constitutional violations. The circuit court's standard of review — deferential for factual findings, de novo for legal questions — determines how hard the hill is.

Pending Legislation

• S 1099 (Sen. Hawley, R-MO) — Nationwide Injunction Abuse Prevention Act of 2025: would bar federal district courts from issuing orders restraining enforcement of laws or policies beyond the specific parties to a case — responding to a wave of single-judge nationwide injunctions blocking executive orders. Status: Introduced.
• S 1206 (Sen. Grassley, R-IA) — Judicial Relief Clarification Act of 2025: limits courts from issuing relief for non-parties and narrows administrative review; would require any challenge to a federal rule to be brought in the D.C. Circuit. Status: Introduced.
• S 32 (Sen. Cruz, R-TX) — LACA (Local Access to Court Act): adds two specific federal court locations (College Station, TX and others) to improve geographic access to federal courts for communities distant from existing courthouses. Status: Passed Senate.

Recent Developments

• Loper Bright (2024) transformed D.C. Circuit's agency review docket: The Supreme Court's June 2024 decision in Loper Bright Enterprises v. Raimondo, overruling Chevron deference, requires circuit courts to independently interpret ambiguous statutes rather than deferring to agency readings. The D.C. Circuit — which reviews most major federal agency rules — is working through what this means for its docket. Early signals: courts are more willing to invalidate agency rules that rely heavily on favorable statutory interpretations. The APA litigation volume has increased as regulated entities bring challenges that would previously have been futile under Chevron. The full impact will take years to develop as courts work through ambiguous statutory provisions across dozens of agencies.
• Nationwide injunction wave generated circuit court caseload surge (2025): Dozens of federal district courts issued nationwide (or "universal") injunctions blocking Trump administration executive orders on immigration, transgender military service, DOGE-related agency actions, and federal workforce reductions. These injunctions were immediately appealed to the circuit courts — and in several cases to the Supreme Court on emergency applications. The result: circuit courts (particularly the Fourth, Ninth, and D.C. Circuits) faced high-profile, fast-tracked appellate work on executive power questions with nationwide stakes. Proposals to limit nationwide injunctions through statute (S 1099) have not yet been enacted, keeping this litigation pattern active.
• Trump second-term appointments are reshaping circuit composition: The Trump administration moved aggressively to fill circuit court vacancies with younger nominees confirmed by the Republican-controlled Senate. As of April 2026, the administration had confirmed more than a dozen circuit judges, shifting the ideological balance in several circuits — particularly the Eleventh and D.C. Circuits. With Article III life tenure, these appointments will affect American law for decades. The Federal Circuit saw particular focus given its patent and trade docket.
• Ninth Circuit split proposals again failed to advance: Bills to split the Ninth Circuit — the largest federal appellate court, covering nine western states and approximately 20% of the U.S. population — were introduced in the 119th Congress. Critics argue its size creates internal inconsistency and delays. The proposals would create a new Twelfth Circuit from Arizona, Nevada, Idaho, Montana, and Alaska. No bill has passed committee; the debate reflects political calculations as much as judicial administration concerns, since the Ninth Circuit's current composition leans liberal and a split could create one conservative circuit.

Related Topics

• Federal Court System
• Federal Jurisdiction & Venue
• Court of International Trade
• Administrative Office of the U.S. Courts
• Rules Enabling Act