What a Notice of Discovery Means in a Lawsuit

A notice of discovery is a formal written demand one side of a lawsuit sends the other for specific information, documents, or testimony relevant to the case. In federal civil litigation, Rules 26 through 37 of the Federal Rules of Civil Procedure control what you can ask for, when you can ask, how the other side must respond, and what the court can do if they refuse.¹ Most cases are won or lost at this stage, long before trial.

When You Can Send a Discovery Notice

You cannot serve any discovery request until both sides have held the planning conference required by Rule 26(f). That conference is where the parties discuss the claims, agree on a discovery schedule, and work out how to handle electronic records and privileged material.¹ A notice sent before that meeting is a nullity. The recipient has no obligation to respond unless the court specifically authorized early discovery or the case falls into an exempt category.

Within 14 days after the Rule 26(f) conference, both sides also have to hand over basic information automatically, without being asked. These mandatory initial disclosures cover witnesses with relevant knowledge, documents and electronically stored information you may use to support your position, a damages calculation with supporting records, and any insurance policy that could cover a judgment.¹ A party who joins the case later gets 30 days from joining to make the same disclosures.

Once formal discovery is open, the scope reaches anything relevant to a party’s claims or defenses, limited by what’s proportional to the needs of the case. Courts weigh the importance of the issues, the money at stake, each side’s access to the information, their resources, and whether the burden of producing the material outweighs its value.¹ That proportionality check is what stops one side from burying the other in requests just to run up costs.

What Your Notice Has to Contain

A vague notice invites objections and delays. At a minimum, yours needs to spell out exactly what you’re asking for, when the response is due, and how the material should be delivered.

Specificity is where most notices fail. A demand for “all documents related to the transaction” is almost guaranteed to draw an objection that the request is overbroad. Describing records by date range, author, subject matter, or file type gives the other side far less room to resist. For electronically stored information, naming the format you want, such as native files versus PDFs, prevents fights later.

The notice also needs a certificate of service showing when, how, and to whom it was delivered. That document creates the official record that the other side received the request, which becomes critical if you later have to ask the court to force compliance.

The Main Types of Discovery Requests

A notice of discovery is a category, not a single form. The specific tool you’re using determines the response deadline and the numeric limits that apply.

Interrogatories

Interrogatories are written questions the recipient must answer in writing and under oath. Federal rules cap them at 25 per party, counting subparts, though a court can allow more for good reason.² Responses are due within 30 days.

Requests for Production

These demand documents, electronic files, or physical objects for inspection and copying. The responding party has 30 days to produce the material or object in writing.³ There is no fixed cap on how many you can send.

Requests for Admission

These ask the other side to admit or deny specific facts or the authenticity of particular documents. Each item has to be stated separately. The recipient must respond or object within 30 days, and any fact not denied is treated as admitted for the rest of the case.⁴ That silence-equals-admission rule makes these one of the sharper instruments in discovery.

Depositions

A notice of deposition compels live testimony under oath before trial, usually recorded by a court reporter. Each side is limited to 10 depositions, and each one is capped at one day of seven hours unless the court orders otherwise.⁵ Depositions are usually the most expensive part of discovery once court reporter fees, transcripts, and attorney preparation time are added up.

Serving the Notice and Filing With the Court

Serving a discovery notice on the opposing party and filing it with the court are two separate steps. Service happens through personal delivery, mail, or electronic transmission, depending on what the court’s rules allow. In federal court, most documents move through the Case Management/Electronic Case Files (CM/ECF) system, which handles service and filing digitally and generates automatic proof of service.⁶ That automatic record eliminates most arguments about whether the other side actually received the request.

Reaching Someone Who Isn’t a Party

A notice of discovery between parties is not the same thing as a subpoena. If the person or company with the information you need isn’t named in the lawsuit, you need a subpoena under Rule 45 to compel their cooperation.⁷

A subpoena can order a non-party to testify at a deposition, produce documents, or allow inspection of property. Geographic reach is limited, though. For testimony, the person generally must live, work, or regularly do business within 100 miles of where the deposition will take place. The same 100-mile limit applies to document production.⁷

The party issuing the subpoena has to take reasonable steps to avoid putting an undue burden on the non-party, who can object in writing within 14 days of being served. If the objections aren’t resolved informally, the issuing party has to ask the court for an order compelling compliance. A non-party who simply ignores a valid subpoena risks contempt of court.

Responding, Objecting, and Updating

If you’re the one who received a notice, you have three basic choices for each request: answer it, object to it, or claim privilege. Objections have to be specific. A boilerplate response saying a request is “overbroad and unduly burdensome” without explanation is unlikely to hold up.

When you withhold documents on attorney-client privilege or work product grounds, you cannot just stay silent. Federal rules require you to describe the withheld material in enough detail for the other side to evaluate the privilege claim, without revealing the protected content.¹ That usually means producing a privilege log listing each document’s date, author, recipients, general subject, and the specific privilege claimed. Courts have little patience for blanket privilege assertions without proper documentation, and vague logs are a frequent basis for motions to compel.

Discovery doesn’t end when you hand over your initial response. If you later learn a prior answer was incomplete or incorrect, you have an ongoing duty to supplement it. The same duty applies to your initial disclosures and expert reports.¹ Failing to update is costly: you lose the right to use the withheld information or the undisclosed witness at a hearing or trial, and the court can order you to pay the other side’s attorney’s fees, inform the jury of the omission, or impose further sanctions up to dismissal.⁸

What Happens When Someone Ignores a Discovery Notice

Rule 37 gives courts a wide menu of sanctions against a party who fails to respond to discovery or disobeys a discovery order. Depending on the severity, the court can:

Order the noncompliant party to pay the other side’s reasonable costs, including attorney’s fees, caused by the failure.
Treat certain facts as established against the noncompliant party.
Bar the party from introducing specific evidence or supporting particular claims.
Strike some or all of the party’s claims or defenses.
Enter default judgment or dismiss the case entirely.

When a party disobeys an actual discovery order, the court must award expenses unless the failure was substantially justified.⁸

Before any of that, though, the rules require you to try to work the dispute out first. Any motion to compel has to include a certification that the filing party made a genuine effort to resolve the issue, often called a “meet and confer” requirement.⁸ Skipping that step is grounds for the court to deny the motion outright.

On the receiving end, if a request is genuinely overbroad or threatens to expose trade secrets, the targeted party can seek a protective order. A court can narrow the scope, limit who can see the produced material, require specific handling procedures, or block the request entirely if the burden clearly outweighs any benefit.¹

Electronic Records and the Duty to Preserve

Most modern discovery notices target electronic records. Emails, text messages, database entries, social media posts, and metadata now dwarf paper records in both volume and importance.

The duty to preserve this material kicks in as soon as litigation is reasonably anticipated, not when a lawsuit is actually filed. Once that trigger occurs, you have to suspend any routine deletion policies and take affirmative steps to make sure relevant electronic records are not lost, overwritten, or destroyed. This is commonly called a litigation hold, and failing to issue one is the most frequent way parties stumble into spoliation problems.

When electronically stored information is lost because a party didn’t take reasonable preservation steps, Rule 37(e) gives the court two tiers of response. If the other side is prejudiced by the loss, the court can order measures to cure that prejudice. If the party intentionally destroyed the information to keep it out of the case, harsher sanctions follow: an adverse inference instruction telling the jury to assume the lost evidence was unfavorable, or outright dismissal or default judgment.⁸

A Note on Criminal Cases

If you’re looking for information about a “notice of discovery” in a criminal case, the rules are different. Federal criminal discovery runs under Rule 16, which lets a defendant inspect documents, physical evidence, test results, and expert reports in the government’s possession that are material to the defense or that the government plans to use at trial.⁹ Prosecutors also carry a constitutional obligation under Brady v. Maryland to disclose evidence favorable to the defendant that is material to guilt or punishment, whether or not the defense asks for it; withholding such evidence violates due process even when the prosecutor acts in good faith.¹⁰ Witness statements have their own rule: under the Jencks Act, the government doesn’t have to produce a witness’s prior recorded statements until after that witness testifies at trial, at which point the defense can request them and the court must order their production.¹¹

Whether you’re sending a discovery notice or responding to one, the rules reward precision and punish neglect. Read the request carefully, calendar the response date the moment it arrives, and treat the duty to preserve and supplement as continuing obligations rather than one-time tasks.

1
Legal Information Institute. Federal Rules of Civil Procedure Rule 26 – Duty to Disclose; General Provisions Governing Discovery
2
Legal Information Institute. Federal Rules of Civil Procedure Rule 33 – Interrogatories to Parties
3
Legal Information Institute. Federal Rules of Civil Procedure Rule 34 – Producing Documents, Electronically Stored Information, and Tangible Things, or Entering Onto Land, for Inspection and Other Purposes
4
Legal Information Institute. Federal Rules of Civil Procedure Rule 36 – Requests for Admission
5
Legal Information Institute. Federal Rules of Civil Procedure Rule 30 – Depositions by Oral Examination
6
United States Courts. Electronic Filing (CM/ECF)
7
Legal Information Institute. Federal Rules of Civil Procedure Rule 45 – Subpoena
8
Legal Information Institute. Federal Rules of Civil Procedure Rule 37 – Failure to Make Disclosures or to Cooperate in Discovery; Sanctions
9
Cornell Law School. Federal Rules of Criminal Procedure Rule 16 – Discovery and Inspection
10
Justia. Brady v. Maryland, 373 US 83 (1963)
11
Office of the Law Revision Counsel. 18 USC 3500 – Demands for Production of Statements and Reports of Witnesses