A per curiam opinion is a court decision issued in the name of the court as a whole, with no individual judge or justice credited as the author. The Latin phrase means “by the court,” and it appears in the slot where a named author would normally sit. These opinions turn up at every level of the federal appellate system, from circuit panels to the U.S. Supreme Court, and they can be anything from a one-paragraph fix of an obvious error to a ruling that reshapes an entire area of law.
What the Term Means
A signed opinion opens with a line like “Justice Kagan, writing for the Court.” A per curiam opinion skips that attribution and moves straight into the reasoning. The format tells the reader that the decision belongs to the institution rather than to a single judge. It does not tell you anything about how the court got there, how hard the case was, or how many judges joined.
Federal circuit courts issue per curiam opinions routinely, often in cases decided without oral argument. The Supreme Court uses the format less often but across a wider range of situations, from short procedural corrections to some of the most consequential rulings in American history.
Per Curiam Is Not the Same as Unanimous
This is the most common misunderstanding. A per curiam opinion means a majority of the panel or bench agreed on the result and the reasoning. It does not mean every judge signed on, and it does not mean the vote was lopsided.
Bush v. Gore is the clearest example. The Supreme Court’s per curiam opinion ended the 2000 presidential election recount, and four justices dissented sharply.1Justia. Bush v. Gore, 531 U.S. 98 (2000) More recent emergency orders on pandemic-era restrictions and voting procedures have come down per curiam with multiple noted dissents. The absence of a named author is a drafting choice, not a vote count.
When Courts Use the Format
There is no single trigger. Courts reach for per curiam in very different situations, and the context behind each one is usually visible from the length and tone of the opinion.
Routine Corrections and Summary Reversals
The most common use is straightforward error correction. When a lower court has clearly misapplied settled law, the reviewing court can issue a brief per curiam opinion reversing the mistake without scheduling oral argument. Federal appellate courts may decide cases without oral argument when the panel unanimously agrees the appeal is frivolous, the legal question has already been authoritatively decided, or the briefs adequately present the facts and arguments.2Legal Information Institute. Federal Rules of Appellate Procedure Rule 34 – Oral Argument Many of those dispositions come down as short per curiam opinions, sometimes just a few paragraphs.
Emergency and Time-Sensitive Matters
Courts also use the format for urgent disputes that demand an immediate institutional response. Emergency stay applications, election challenges near voting deadlines, and injunction fights over fast-moving government policies often fall into this category. The Supreme Court’s handling of non-merits matters has drawn increased attention in recent years, with critics arguing that important legal questions are sometimes resolved through brief summary orders.3Library of Congress. The Interim Docket or Shadow Docket – Non-Merits Matters at the Supreme Court When the Court does provide reasoning in these emergency postures, it often does so per curiam.
High-Stakes Cases Decided in the Court’s Name
Sometimes a case is politically charged or institutionally significant enough that the Court chooses to speak collectively rather than put one justice’s name on the ruling. Buckley v. Valeo, the foundational 1976 campaign finance decision, was issued per curiam despite running over 100 pages and reshaping how the government may regulate political spending.4Justia. Buckley v. Valeo, 424 U.S. 1 (1976) Bush v. Gore followed the same pattern under extraordinary time pressure.1Justia. Bush v. Gore, 531 U.S. 98 (2000) In cases like these, the format emphasizes that the ruling carries the authority of the institution, not just the view of whichever justice drafted it.
Does a Per Curiam Opinion Count as Precedent?
A published per curiam opinion from the Supreme Court carries the same binding authority as a signed majority opinion. Lower courts must follow it under the same stare decisis principles that govern any other precedent, and lawyers cite it the same way in briefs. The lack of a named author has no effect on its legal force.
Unpublished per curiam opinions at the circuit level are a different matter. Many federal circuits once restricted or prohibited parties from citing unpublished decisions. That changed with a federal rule amendment: courts may no longer forbid citation of unpublished opinions, orders, or other written dispositions issued on or after January 1, 2007.5Legal Information Institute. Federal Rules of Appellate Procedure Rule 32.1 – Citing Judicial Dispositions The rule opened the door to citation but did not make these opinions binding. Whether an unpublished per curiam carries persuasive weight, and how much, still varies by circuit. Some treat them as persuasive authority a court may consider; others give them minimal weight.
Concurrences and Dissents
The unsigned main opinion does not silence individual judges. A judge who agrees with the outcome but reaches it through different reasoning can file a concurrence. One who disagrees entirely can write a dissent. Those separate writings are always signed by their authors.
So a single per curiam decision can contain several layers. The main text gives the holding. A concurrence may flag a narrower rationale or warn about future applications. A dissent may argue the majority misread the statute or ignored key facts. Bush v. Gore produced a per curiam opinion along with multiple concurrences and four separate dissents.1Justia. Bush v. Gore, 531 U.S. 98 (2000) Reading only the per curiam text gives you the result. Reading the full decision shows where the court actually stood.
How a Per Curiam Opinion Is Cited
Lawyers citing a per curiam opinion follow standard case citation format and add a parenthetical noting the designation after the year. Under the Bluebook, the standard citation manual used in most American legal writing, it looks like this: Werbsa v. Seiler, 393 F.2d 937 (3d Cir. 1968) (per curiam). The parenthetical alerts the reader that no individual judge wrote the opinion, which can matter when evaluating its context.
For anyone reading court documents rather than writing them, the point is simpler. When you see “Per Curiam” at the top of an opinion where an author’s name would normally appear, the court is speaking as a body. That tells you something about how the court chose to present the decision. It does not tell you whether the ruling was close, how important it is, or how it will be applied later. Those answers are in the opinion itself.