En Banc Review in Federal Courts: A Comprehensive Guide
En banc review, a rarely granted but profoundly impactful procedural mechanism, represents the pinnacle of appellate scrutiny within the federal circuits. Deriving from the French for "on the bench," an en banc rehearing involves all active judges of a U.S. Court of Appeals sitting together to reconsider a decision previously rendered by a three-judge panel. This comprehensive guide explores the intricacies of en banc review, its legal standards, procedural requirements, strategic considerations, and its significant role in shaping federal jurisprudence.
What En Banc Review Means and How It Differs from Standard Three-Judge Panel Decisions
In the vast majority of federal appellate cases, a panel of three judges is randomly selected from the active judges of the circuit to hear and decide an appeal. This three-judge panel's decision constitutes the judgment of the court of appeals and is binding on the parties, subject to potential review by the U.S. Supreme Court.
En banc review, in contrast, involves a rehearing of the case by the full complement of active judges on the court of appeals (or, in some circuits, a statutorily defined larger panel). The purpose of en banc review is not merely to correct a perceived error in the panel's decision but to address issues of fundamental importance to the circuit's jurisprudence or to resolve intractable conflicts within the circuit's precedent. When an en banc court hears a case, it effectively vacates the panel's decision, and the en banc court's subsequent decision becomes the controlling law of the circuit.
The key differences can be summarized as follows:
- Composition: Three judges for a standard panel decision vs. all active judges (or a larger, defined panel) for en banc.
- Purpose: Error correction and application of law for panels vs. maintaining circuit uniformity, resolving intra-circuit conflicts, and addressing exceptionally important questions for en banc.
- Precedential Value: Panel decisions are precedential within the circuit unless overturned by the en banc court or Supreme Court. En banc decisions are the highest form of precedent within the circuit, binding on all future panels.
- Frequency: Standard panel decisions are routine; en banc review is exceedingly rare.
The Legal Standards for Granting En Banc Rehearing Under Federal Rule of Appellate Procedure 35
The criteria for granting en banc review are codified in Federal Rule of Appellate Procedure (FRAP) 35. Rule 35(a) sets forth two primary grounds:
FRAP 35(a) Rehearing En Banc:
"A majority of the circuit judges who are in regular active service may order that an appeal or other proceeding be heard or reheard by the court of appeals en banc. An en banc hearing or rehearing is not favored and ordinarily will not be ordered unless:
- en banc consideration is necessary to secure or maintain uniformity of the court's decisions; or
- the proceeding involves a question of exceptional importance."
These two standards are the bedrock upon which all petitions for en banc review are evaluated. It is crucial for practitioners to frame their arguments precisely within these narrow confines.
When En Banc Review Is Appropriate: Intra-Circuit Conflicts and Questions of Exceptional Importance
Understanding the application of FRAP 35(a)'s standards is critical for assessing the viability of an en banc petition.
Intra-Circuit Conflicts (Maintaining Uniformity)
The first ground, "to secure or maintain uniformity of the court's decisions," typically refers to situations where a panel decision has created or exacerbated a conflict within the circuit's own precedents. This is often referred to as an intra-circuit conflict. Such conflicts undermine the predictability and consistency of the law within the circuit, leading to confusion among lower courts and litigants.
- Direct Conflict: The most compelling case for en banc review on this ground is when a panel decision directly contradicts a prior, binding decision of the same circuit, without adequately distinguishing it or explaining why the prior precedent is no longer applicable.
- Implicit Conflict: Sometimes, a panel decision may not directly contradict prior precedent but renders it effectively meaningless or creates an irreconcilable tension with a line of cases, warranting en banc consideration to clarify the circuit's position.
- Avoiding Future Conflicts: En banc review may also be appropriate to prevent an emerging conflict among different panels or to resolve an ambiguity in existing circuit law that is likely to lead to future divergent interpretations.
It is important to distinguish an intra-circuit conflict from a mere disagreement with a panel's application of law or its factual findings. En banc review is not a mechanism for rearguing the merits of a case simply because a litigant believes the panel erred.
Questions of Exceptional Importance
The second ground, "the proceeding involves a question of exceptional importance," is broader and more subjective. This standard applies when the case presents an issue that transcends the interests of the immediate litigants and has significant implications for a large number of cases, an entire area of law, or public policy within the circuit's jurisdiction.
- Constitutional Questions: Cases involving novel or unsettled questions of constitutional law often qualify.
- Statutory Interpretation: Issues of first impression or recurring questions involving the interpretation of significant federal statutes, especially those with broad societal or economic impact.
- Major Policy Implications: Cases that have substantial ramifications for governmental operations, industry, civil rights, or other matters of widespread public concern.
- Conflict with Other Circuits: While not explicitly a ground under FRAP 35(a), a deep and acknowledged conflict with the decisions of other circuits on a significant legal question can sometimes elevate the "importance" of the issue, particularly if the Supreme Court has not yet addressed it. However, the primary focus remains on the importance *within the circuit*.
Simply asserting that a question is "important" is insufficient. The petition must articulate *why* the question is exceptionally important, detailing its far-reaching consequences and its potential to shape the legal landscape.
The Petition Process: Timing, Format Requirements, and Page Limits
The process for seeking en banc review is governed by FRAP 35 and 40. Strict adherence to these rules is paramount.
Timing
Under FRAP 40(a)(1), a party must file a petition for panel rehearing or rehearing en banc within 14 days after entry of judgment. This deadline is jurisdictional and rarely extended. For the United States or an officer or agency thereof, the deadline is 45 days. If a petition for panel rehearing is filed, the court may, on its own motion, order an en banc rehearing, or a party may file a separate petition for en banc rehearing after the panel denies panel rehearing.
It is common for parties to combine a petition for panel rehearing with a petition for rehearing en banc, often titled "Petition for Rehearing En Banc and for Panel Rehearing." This allows the panel to reconsider its decision first, and if denied, the en banc petition remains pending for consideration by the full court.
Format Requirements
FRAP 35(b) specifies the content requirements for a petition for rehearing en banc:
- Statement of the Issues: A concise statement of the issues presented for en banc consideration.
- Statement of the Case: A brief statement of the case and the panel's decision.
- Argument for En Banc Rehearing: A concise statement of why the case meets the standards of FRAP 35(a). This is the critical section where the petitioner must demonstrate an intra-circuit conflict or a question of exceptional importance.
- Certificate of Compliance: A certificate that the petition complies with the type-volume limit.
- Certificate of Service: Proof that the petition was served on all other parties.
Page Limits
FRAP 35(b)(2) imposes strict page or word limits:
- The petition must not exceed 15 pages or 3,900 words.
- This limit is inclusive of the table of contents, table of authorities, and any addendum.
These limits necessitate concise, focused, and persuasive writing. Every word must count.
How the Vote Works: Majority of Active Circuit Judges Must Vote to Rehear
Once a petition for rehearing en banc is filed, it is circulated to all active circuit judges. A vote is then taken among these judges. FRAP 35(a) states that "A majority of the circuit judges who are in regular active service may order that an appeal or other proceeding be heard or reheard by the court of appeals en banc."
- Initial Circulation: The petition is first circulated to the panel judges who decided the case. If they decide to modify their opinion or grant panel rehearing, the en banc petition may become moot.
- Request for a Poll: Any active judge can request a poll of the full court on whether to grant en banc review. In some circuits, this request is automatic if the panel recommends en banc review or if a certain number of judges express interest.
- Voting Threshold: To grant en banc review, a simple majority of all active judges in regular active service must vote in favor. This means that if a circuit has 12 active judges, at least 7 votes are required. Senior judges do not participate in the en banc vote unless they were part of the original panel and the court's rules permit their participation in the en banc proceeding itself (though not in the vote to grant).
- Dissent from Denial: Judges who believe en banc review should have been granted may issue a "dissent from the denial of rehearing en banc," often explaining their reasons for believing the case meets FRAP 35(a) standards. These dissents can sometimes signal a deep division within the court and may influence future panels or even the Supreme Court.
Statistics on How Rarely En Banc Review Is Granted (Typically <1% of Cases)
En banc review is an extraordinary remedy, and statistics consistently demonstrate its rarity. Across federal circuits, the grant rate for petitions for rehearing en banc typically hovers at less than 1% of all cases decided on the merits. Some sources suggest rates as low as 0.1% to 0.2%.
- This low success rate underscores the high bar set by FRAP 35(a) and the institutional reluctance of courts to disturb panel decisions, which are presumed to be correct.
- The rarity also reflects the significant investment of judicial resources required for an en banc proceeding, involving numerous judges, additional briefing, and often a second oral argument.
Practitioners must approach en banc petitions with a clear understanding of these odds, reserving such petitions for only the most compelling circumstances.
Circuit-by-Circuit Variations (9th Circuit's Limited En Banc Panels of 11 Judges)
While FRAP 35 establishes the general framework, there are some variations among the circuits, particularly concerning the composition of the en banc court. The most notable variation involves the Ninth Circuit.
- Most Circuits: In most U.S. Courts of Appeals, an en banc hearing involves all active judges in regular active service.
- Ninth Circuit: Due to its exceptionally large size (currently 29 authorized active judges), the Ninth Circuit employs a "limited en banc" panel. Under Ninth Circuit Rule 35-3, an en banc court consists of the chief judge and 10 other circuit judges drawn by lot from the active judges of the court. This structure allows the Ninth Circuit to manage its caseload while still providing a mechanism for broader judicial review.
- Other Circuits: While the Ninth Circuit is unique in its limited en banc panel, other circuits may have local rules that specify procedures for polls, recusals, or the participation of judges who were on the original panel but have since taken senior status.
Strategic Considerations for Practitioners Filing En Banc Petitions
Given the low probability of success, filing an en banc petition requires careful strategic thought.
- Assess the Grounds Rigorously: Do not file an en banc petition merely because you disagree with the panel's outcome. Only proceed if you can clearly articulate how the case meets the strict standards of FRAP 35(a) – a genuine intra-circuit conflict or a question of exceptional importance.
- Focus on the En Banc Criteria: The petition must directly address FRAP 35(a). Avoid re-arguing the merits of the appeal. Instead, explain why the panel's decision creates an intra-circuit conflict or why the issue is of exceptional importance to the circuit.
- Be Concise and Persuasive: The page limits are unforgiving. Craft a succinct, powerful argument that immediately captures the judges' attention and highlights the systemic implications of the panel's decision.
- Identify the Deepest Divisions: If there was a dissenting opinion on the panel, leverage it. A dissent may signal to other judges that the case warrants further review.
- Consider the Judges: While not ethical to directly lobby, understanding the jurisprudential leanings of the circuit's active judges can inform how you frame your arguments, particularly for "questions of exceptional importance."
- Manage Client Expectations: Prepare your client for the very low likelihood of success. En banc petitions are expensive and rarely granted.
- Preserve Issues for Certiorari: Even if denied, an en banc petition can serve to highlight the importance of the issue and ensure it is fully presented for potential Supreme Court review. A dissent from the denial of en banc rehearing can be particularly valuable for a subsequent certiorari petition.
The Role of Amicus Briefs in En Banc Proceedings
Amicus curiae ("friend of the court") briefs can play a significant role in en banc proceedings, often more so than in initial panel hearings. Because en banc review often concerns issues of exceptional importance or circuit-wide uniformity, external stakeholders frequently have a vested interest in the outcome.
- Demonstrating Importance: Amicus briefs from governmental entities, industry associations, civil rights organizations, or academic institutions can powerfully demonstrate that a question is indeed of "exceptional importance" by illustrating its broader impact.
- Providing Diverse Perspectives: Amici can offer unique factual contexts, legal analyses, or policy arguments that might not be fully developed by the parties themselves.
- Signaling Judicial Interest: The filing of several amicus briefs in support of en banc review can signal to the active judges that a significant segment of the legal community or public considers the issue worthy of full court consideration.
Parties considering an en banc petition should strategically identify potential amici who can bolster their argument that the case meets the FRAP 35(a) standards. FRAP 29 governs the filing of amicus briefs, generally requiring consent of the parties or leave of court, though the United States and its agencies may file without consent.
Notable En Banc Decisions That Changed Circuit Law
Despite their rarity, en banc decisions are pivotal in shaping federal law. They resolve long-standing circuit splits, establish new interpretations of statutes or constitutional provisions, and correct what the full court perceives as significant errors by panels. Examples include:
- United States v. Windsor (2d Cir. 2012) (en banc): While ultimately decided by the Supreme Court, the Second Circuit's en banc decision striking down Section 3 of the Defense of Marriage Act (DOMA) as unconstitutional was a landmark ruling that significantly influenced the national debate on same-sex marriage.
- Peruta v. County of San Diego (9th Cir. 2016) (en banc): This en banc decision reversed a prior panel's ruling, holding that the Second Amendment does not protect a right to carry concealed firearms in public for self-defense. This case exemplified an intra-circuit conflict and a question of exceptional public importance.
- King v. Burwell (4th Cir. 2014) (en banc): The Fourth Circuit's en banc decision upheld the IRS's interpretation of the Affordable Care Act, which allowed for federal tax subsidies for health insurance purchased on exchanges established by the federal government. This case involved a critical question of statutory interpretation with massive policy implications.
These cases illustrate the power of en banc review to address issues that profoundly affect society and to establish definitive circuit-level precedent.
Impact on Supreme Court Certiorari: How En Banc Decisions Affect Cert Petitions
En banc decisions have a significant and complex impact on subsequent petitions for a writ of certiorari to the U.S. Supreme Court.
- Enhanced Certiorari Prospects:
- Intra





