The Federal Rules of Civil Procedure are the single uniform code, made up of 86 numbered rules, that governs every civil lawsuit filed in a United States district court from the moment a complaint is filed through post-trial motions. Congress authorized them through the Rules Enabling Act of 1934, the Supreme Court promulgated the original set in 1938, and they have been amended many times since. They cover pleadings, service, discovery, motions, trial, and judgment, and they apply the same way in every federal district in the country.
Where the Rules Come From and What They Cannot Do
Before 1938, federal courts across the country followed different procedural traditions, and a lawyer who knew the rules in one district might be blindsided by requirements in another. The Rules Enabling Act fixed that by giving the Supreme Court authority to write general rules of practice and procedure for federal courts. The Court exercises that authority through advisory committees that propose changes, which then go through a public comment period before taking effect.
The authority has one important limit: the rules cannot change anyone’s substantive legal rights. They dictate how a case moves through the system, not what legal claims exist or what remedies are available. One early consequence of the 1938 rules was the merger of the old separate systems of law and equity into a single track. Rule 2 captures the result in one sentence: there is one form of action, the civil action. A plaintiff can seek both money damages and a court order in the same case.
Where the Rules Apply
Rule 1 sets the boundary. The rules apply to all civil actions and proceedings in United States district courts, and courts are told to use them to secure a just, speedy, and inexpensive resolution of every case. They do not govern federal criminal prosecutions, which have their own separate set of rules. They do not bind state courts, which follow their own procedural codes.
Within that federal civil sphere, each district court also adopts its own local rules under Rule 83. Local rules must be consistent with the federal rules and cannot duplicate them, but they often set page limits for briefs, require specific formatting, or impose meet-and-confer obligations before certain motions. A local rule that imposes a formatting requirement cannot be enforced in a way that costs a party its rights because of an unintentional failure to comply. Even so, checking the local rules for your specific court is one of the most commonly skipped steps in federal practice.
How a Federal Civil Case Begins
A civil action begins when the plaintiff files a complaint with the court clerk. The filing fee for most civil cases in federal district court is $405, which includes a $350 statutory fee and a $55 administrative fee set by the Judicial Conference.
After filing, the plaintiff must arrange for a summons and a copy of the complaint to be delivered to each defendant. This delivery, called service of process, must be handled by someone who is at least 18 years old and not a party to the case. If the plaintiff fails to serve a defendant within 90 days after filing, the court can dismiss the case against that defendant without prejudice.
A defendant who receives a formal summons has 21 days to respond with an answer or a motion challenging the complaint. If the defendant voluntarily waives formal service under Rule 4(d), the response deadline extends to 60 days, which gives both sides an incentive to cooperate on the logistics of getting the case started. When the defendant is the United States government or a federal officer sued in an official capacity, the deadline is 60 days after service on the United States attorney.
Pleadings, Amendments, and the Signature Requirement
Rule 7 limits the documents that qualify as “pleadings” to complaints, answers, and court-ordered replies. Rule 8 sets the bar for what those documents must contain: a short, plain statement showing why the court has jurisdiction and what happened that entitles the plaintiff to relief. The goal is fair notice, not proof. The defendant’s answer must then address each allegation by admitting it, denying it, or stating that the defendant lacks enough information to respond.
Rule 15 provides a forgiving framework for fixing early mistakes. A party can amend a pleading once without asking the court’s permission if the amendment is filed within 21 days of serving the original, or within 21 days after a responsive pleading or a Rule 12 motion is served, whichever comes first. After that window closes, amendments require either the other side’s written consent or the court’s permission, which courts grant freely when justice requires it.
Every filing must be signed by at least one attorney of record, or by the party personally if unrepresented. Under Rule 11, that signature certifies that the filing has a legitimate purpose, that the legal arguments are supported by existing law or a good-faith argument for changing it, and that the factual claims have evidentiary support. Filing something frivolous or designed to harass can lead to sanctions, including orders to pay the other side’s attorney fees. The rule includes a 21-day safe harbor: before a sanctions motion is filed with the court, the moving party must serve it on the opposing side and give them 21 days to withdraw or correct the challenged document.
Discovery
Discovery is where most of the work in federal litigation happens, and Rules 26 through 37 control how it unfolds. Rule 26 requires both sides to hand over basic information voluntarily before anyone sends a formal request: the names of people likely to have relevant knowledge, copies or descriptions of relevant documents and electronic data, and a breakdown of claimed damages with supporting materials.
Under Rule 26(f), the parties must hold an early planning conference and submit a proposed discovery plan to the court. The plan covers the subjects on which discovery is needed, any issues about preserving or producing electronically stored information (including the format), and how to handle claims of privilege.
The Tools
Depositions under Rules 30 and 31 let attorneys question witnesses under oath, with the testimony recorded by a court reporter. Each side is limited to ten depositions unless the court grants permission for more.
Written discovery comes in several forms. Interrogatories under Rule 33 are written questions the other party must answer under oath, capped at 25 per side unless the court allows more. Requests for production under Rule 34 let a party demand access to documents, electronically stored information, or physical items in the other side’s possession. The responding party generally has 30 days to comply, though extensions are common. Requests for admission under Rule 36 ask the other side to confirm or deny specific facts or the authenticity of documents. An admitted fact is treated as established for the rest of the case.
Privilege
Attorney-client communications and work product prepared for litigation are generally protected from disclosure. A party that withholds documents on privilege grounds cannot simply refuse to produce them silently. Rule 26(b)(5) requires the withholding party to expressly claim privilege and describe what was withheld in enough detail that the other side can evaluate the claim. In practice, that means a privilege log listing each withheld document, its date, the people involved, and the basis for the claim.
Expert Witnesses
When a party plans to call an expert, Rule 26(a)(2) requires disclosure of that expert along with a detailed written report. The report must include every opinion the expert will offer and the reasoning behind it, the data the expert considered, any exhibits to be used, the expert’s qualifications and publications from the past ten years, a list of other cases where the expert testified over the past four years, and a statement of the expert’s compensation for the case.
Electronically Stored Information
Electronic discovery has become the most expensive and contentious part of many federal cases. Rule 26(b)(2)(B) provides that a party does not need to produce electronically stored information from sources it identifies as not reasonably accessible because of undue burden or cost, though a court can still order production if the requesting party shows good cause.
Rule 37(e) addresses what happens when electronically stored information is lost because a party did not take reasonable steps to preserve it and it cannot be restored through other discovery. If the loss causes prejudice, the court can order measures to cure that prejudice, but nothing more severe than necessary. The harshest sanctions, such as instructing the jury to presume the lost information was unfavorable, dismissing the case, or entering a default judgment, are reserved for situations where the court finds the party destroyed the evidence with the intent to deprive the other side of its use. Negligent loss, no matter how careless, does not justify those remedies.
When a Party Refuses To Cooperate
Rule 37 gives courts broad authority to deal with stonewalling. A party can file a motion to compel responses, and if the court grants it, the losing side typically pays the winner’s attorney fees for bringing the motion. Continued defiance of a court order can lead to escalating consequences: treating certain facts as established, prohibiting a party from introducing evidence, striking pleadings, or dismissing the case entirely.
Pretrial Motions
Before trial, defendants have several opportunities to argue the case should be resolved or narrowed. The most common is a motion to dismiss under Rule 12(b). Rule 12(b)(6) argues that even accepting every fact in the complaint as true, the plaintiff has not described a legally valid claim. Other grounds include lack of jurisdiction over the subject matter, lack of jurisdiction over the defendant, improper venue, and defective service. A Rule 12 motion must be filed before the answer, and some defenses like personal jurisdiction and improper venue are waived permanently if not raised early.
After discovery closes, a party can move for summary judgment under Rule 56, asking the court to decide the case without a trial. The court grants the motion if the evidence shows there is no genuine dispute about any material fact and the moving party is entitled to win as a matter of law. The court views all the evidence in the light most favorable to the non-moving party, asking whether a reasonable jury could find for the other side. Summary judgment motions can be filed at any time up to 30 days after discovery closes, unless the court sets a different deadline.
Class Actions
Rule 23 allows one or a few plaintiffs to represent a large group of people with similar claims, but only after the court certifies the class. Certification requires four prerequisites: the group must be large enough that joining everyone individually would be impractical, the claims must share common questions of law or fact, the representatives’ claims must be typical of the group’s claims, and the representatives must be capable of fairly protecting the class’s interests.
Even after satisfying those requirements, the case must fit into one of three categories. The first covers situations where individual lawsuits would create conflicting obligations for the defendant. The second applies when the defendant has acted in a way that affects the entire class uniformly, making a single injunction or court order the appropriate remedy. The third, most common in large-scale litigation, requires that shared legal questions dominate over individual ones and that a class action is a more efficient way to resolve the dispute than separate lawsuits.
Settling or dismissing a certified class action requires court approval. The court must find the settlement fair, reasonable, and adequate after evaluating whether class counsel adequately represented the group, whether the deal was negotiated at arm’s length, and whether the relief is meaningful given the costs and risks of going to trial. Class members can object to a proposed settlement, and in cases certified under the third category the court may require a new opportunity for individuals to opt out before the settlement becomes final.
Emergency Relief
Rule 65 governs two types of emergency relief. A preliminary injunction can be issued after notice to the other side and requires the plaintiff to show four things: a likelihood of winning on the merits, a likelihood of suffering irreparable harm without the injunction, that the balance of hardships tips in the plaintiff’s favor, and that the injunction serves the public interest.
A temporary restraining order can be issued without any notice to the other side, but only when the situation is truly urgent. The movant must show through an affidavit or verified complaint that immediate and irreparable harm will occur before the other side can even be heard, and the movant’s attorney must certify in writing what efforts were made to provide notice and why notice should not be required. A TRO issued without notice expires within 14 days unless the court extends it for another similar period. The other side can move to dissolve the order on two days’ notice.
For both types of orders, Rule 65(c) requires the movant to post a security bond in an amount the court considers appropriate. The bond covers any costs and damages the other side might suffer if the court later determines the injunction was wrongfully issued.
Trial and the Right to a Jury
The Seventh Amendment preserves the right to a jury trial in federal civil cases, and Rule 38 makes clear the right is not automatic. A party that wants a jury must file a written demand within 14 days after the last pleading directed to the triable issue is served. Miss that deadline and the right is waived.
When no jury demand is made, the judge conducts a bench trial and serves as both the finder of fact and the interpreter of law. Rule 52 requires the judge to make specific factual findings and state legal conclusions separately, which creates a record for any appeal. Rules 47 through 51 control the mechanics of jury trials, from selecting jurors through delivering instructions on the law.
After the Verdict
Once a jury or judge reaches a decision, Rule 54 governs entry of the formal judgment, which triggers several clocks. Under Rule 62, enforcement is automatically stayed for 30 days after entry, giving the losing party time to decide whether to appeal or seek other relief.
Rule 59 allows a party to move for a new trial within 28 days of judgment, based on grounds like errors during the trial, an inconsistent verdict, or newly discovered evidence that could not have been found earlier with reasonable diligence. Courts do not grant new trials simply because one side is unhappy with the result.
Rule 60 provides a separate path for relief from a final judgment under more limited circumstances. A party can seek relief for mistake, excusable neglect, newly discovered evidence, or fraud by the opposing party, and for those grounds the motion must be filed within one year of the judgment. All Rule 60(b) motions must also be brought within a reasonable time, so even within the one-year window, waiting too long without justification can be fatal. Other grounds for relief, such as a judgment that has been satisfied or a significant change in the underlying law, have no fixed deadline beyond the reasonable-time requirement. The post-trial rules reflect a deliberate tradeoff: finality matters, but courts retain the power to correct genuine injustice when the circumstances warrant it.