How to Write a Deposition Letter: Rule 30 Requirements and Format

To write a deposition letter under the federal rules, state the time and place of the deposition, name the deponent (or describe them if the name is unknown), and specify how the testimony will be recorded. Those three elements, set out in Rule 30(b)(1), are what the Federal Rules of Civil Procedure actually require. Everything else that typically appears on the page — the case caption, the signature block, the certificate of service — is professional convention or a local rule requirement layered on top of the federal minimum.¹

The Required Elements Under Rule 30

Rule 30(b)(1) is short. A proper notice must include:

The time and place of the deposition.
The deponent’s name and address, if known. If the name is unknown, a general description sufficient to identify the person or the group they belong to.
The method of recording — stenographic, audio, or audiovisual. The party noticing the deposition pays for the recording it chose.¹

That is the complete federal list. One common misconception is that the notice must identify the court reporter by name. It does not. The officer administering the oath states their own name and business address on the record at the start of the deposition.¹ Any other party may designate an additional recording method at their own expense, provided they give prior notice to the deponent and all other parties.

How the Letter Is Structured

Rule 30 does not prescribe a format, but a conventional notice follows a predictable shape that courts and opposing counsel expect.

Put the notice on firm letterhead with the date of issuance at the top. Below that, place the full case caption: court name, parties, and case number. This is standard legal formatting even though the federal rule does not demand it, and many local rules do.

Open with a direct statement of purpose. A line like “Please take notice that [party name] will take the deposition of [deponent’s name] by oral examination” is conventional and clear. Give the date, time, and exact location next. If the deposition is remote, name the videoconference platform and either include the login details or state that they will be circulated separately.

State the recording method explicitly. If you plan to videotape in addition to using a stenographer, say both. Close with the attorney’s signature block — name, bar number, firm, address, and contact information — and attach a certificate of service listing every party who received a copy and how it was delivered. Under Rule 5, deposition notices are discovery papers that must be served on every party unless the court orders otherwise.²

Is a Notice Enough, or Do You Need a Subpoena?

The single most important question before you draft is whether the deponent is a party to the lawsuit or an outsider.

If the deponent is a party, or an officer, director, or managing agent of a party, a properly served notice is enough to compel attendance. If a noticed party fails to appear, the court can impose sanctions directly.³

For a non-party, a notice alone has no legal force. You need a subpoena issued under Rule 45, personally delivered by someone at least 18 years old who is not a party, along with the witness fees and mileage the law requires. You still send the deposition notice to every other party in the case so their attorneys can attend. The subpoena also carries a geographic limit: the witness can only be required to appear within 100 miles of where they live, work, or regularly conduct business in person.⁴

Asking the Deponent to Bring Documents

How you request documents depends again on party status. For a non-party, attach a subpoena duces tecum listing the materials you want produced. Rule 30 requires that any materials designated for production under a subpoena duces tecum be listed in the notice or attached to it, so every other party sees the request.¹

For a party, attach a Rule 34 request for production to the notice. The responding party generally has 30 days to respond in writing.⁵ Think about timing. If your deposition is three weeks out but the Rule 34 response window runs 30 days, you may not have the documents when the witness sits down. Coordinate the dates or get a stipulation for earlier production.

Be specific about what you want. Vague categories like “all documents related to the transaction” invite objections. List categories clearly, define key terms, and tie the scope to the claims or defenses actually in play.

Noticing a Corporation or Other Organization

If the deponent is a corporation, partnership, government agency, or other organization rather than an individual, Rule 30(b)(6) adds requirements the drafter has to meet on the page.

The notice must describe with “reasonable particularity” the topics the organization will be examined on. The organization then designates one or more witnesses to testify on its behalf about those topics, and those witnesses must testify about information known or reasonably available to the organization, not just what they personally remember.¹

Before or promptly after serving the notice, the noticing party and the organization must confer in good faith about the matters for examination. That duty is not optional, and if the organization is a non-party, the subpoena must advise it of the duty to confer and to designate its witnesses.¹

Topic descriptions are where most 30(b)(6) fights start. Something like “all company operations from 2018 to present” is too broad and draws objections. Descriptions that are too narrow can leave you unable to follow up outside the designated scope. Aim for categories specific enough to give the organization fair notice of what to prepare and broad enough to cover the ground you actually need.

How Much Advance Notice to Give

Rule 30 requires “reasonable written notice” without defining a specific number of days.¹ What is reasonable depends on complexity, how many depositions are stacked up, and whether document production is involved. In federal practice, 10 to 14 days is a widely followed baseline, and some courts treat notice under seven days as presumptively unreasonable. Local rules in many districts set specific minimums, so check them before you send.

When a subpoena duces tecum travels with the notice, build in more time. A non-party has the right to object or move to quash, and courts expect enough runway for that process to play out before the deposition date.

Serving the Notice and Keeping Proof

The notice must be served on every other party. Rule 5 permits hand delivery, leaving a copy at the person’s office or home, mailing to the last known address, or electronic service through the court’s filing system or another means the recipient has agreed to in writing.² Most attorneys serve deposition notices electronically through the court’s e-filing system, which creates an automatic record of service.

Keep that record. If the deponent fails to appear and you later move for sanctions, you will need to show the deposition was properly noticed and served. Save copies of the notice, the proof of service, and any related correspondence.

Limits to Flag in Your Letter

Two federal limits are worth knowing before you draft. Each side is capped at 10 depositions, counting both oral depositions under Rule 30 and written depositions under Rule 31. Once the plaintiffs collectively hit 10, they need court permission or a stipulation for an eleventh, and the same cap applies independently to defendants and to third-party defendants.¹

Each deposition is also capped at one day of seven hours unless the parties agree otherwise or the court orders more time.¹ If a complex examination may push against that boundary, flag the issue with opposing counsel in advance and consider addressing it in the notice itself.

1
Legal Information Institute. Federal Rules of Civil Procedure Rule 30 – Depositions by Oral Examination
2
Legal Information Institute. Federal Rules of Civil Procedure Rule 5 – Serving and Filing Pleadings and Other Papers
3
Legal Information Institute. Federal Rules of Civil Procedure Rule 37 – Failure to Make Disclosures or to Cooperate in Discovery; Sanctions
4
Legal Information Institute. Federal Rules of Civil Procedure Rule 45 – Subpoena
5
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