New York CPLR Subpoena: Service, Scope, and Challenges

A subpoena under New York’s Civil Practice Law and Rules is a command, issued in a civil case, that requires a person to appear and testify, produce documents, or both. The CPLR sets out who can issue one, how it must be served, what it can reach, how to challenge it, and what happens when someone ignores it. Article 23 does most of the heavy lifting, with related rules in Articles 31, 45, and 80 filling in scope, privilege, witness fees, and penalties.

What a Subpoena Can Compel

New York uses two basic subpoena forms, plus a hybrid that combines them.

A subpoena ad testificandum orders a person to appear and give testimony at a deposition, hearing, or trial.
A subpoena duces tecum orders the production of documents, records, or other tangible items, described with enough specificity that the recipient knows what to gather.
A hybrid subpoena does both. CPLR 2305(b) expressly allows a document subpoena to be joined with one for testimony.¹

Non-party subpoenas are common in commercial and personal injury cases. Banks, hospitals, and employers regularly receive document subpoenas even though they have no stake in the lawsuit. In Kapon v. Koch, the Court of Appeals held that the issuing party does not have to prove the documents are unavailable elsewhere, but the request still has to be reasonably tied to the case and satisfy CPLR 3101(a)(4)’s requirement that the subpoena or an accompanying notice state the circumstances or reasons the disclosure is needed.²

Who Can Issue One

CPLR 2302(a) lets several people issue subpoenas without a court order: court clerks, judges, attorneys of record in the action, arbitrators, and referees.³ A self-represented party cannot issue their own subpoena and must get one from a clerk or judge.

One important carve-out: a subpoena for a patient’s clinical records maintained under Mental Hygiene Law § 33.13 must be accompanied by a court order, even when an attorney issues it.³

Serving It the Right Way

Method of Service

CPLR 2303(a) says a subpoena is served the same way as a summons, which under CPLR 308 normally means personal delivery. If personal delivery fails, the alternative methods in CPLR 308(2) and 308(4) are available. When those alternatives are used, no filing of proof of service is required, and service is complete once both the delivery or affixing and the mailing are done.¹

Notice to Other Parties

A step that trips up practitioners: whenever you serve a subpoena duces tecum in a pending civil case, CPLR 2303(a) requires you to also serve a copy on every party who has appeared. That copy must be delivered promptly after the witness gets the subpoena and before any documents are produced.¹ Miss this, and opposing counsel has grounds to challenge both the subpoena and anything obtained through it.

Witness Fees

Fees and travel expenses must be tendered at the time of service. Forget them and the subpoena is defective. Under CPLR 8001:

Attendance fee: $15 per day, whether or not the witness actually testifies.
Travel: $0.23 per mile from the place of service to the place of attendance and back. No mileage applies for travel entirely within a city.
Non-party deposition witnesses: an additional $3 per day on top of the attendance fee.
Transcript preparation: $0.10 per folio if the subpoena requires preparing a transcript of records.⁴

At the end of each day, the witness can demand the fee for the next day. If it is not paid, the witness is discharged and no longer has to return.

What a Subpoena Can Actually Reach

Scope is anchored by CPLR 3101(a), which calls for “full disclosure of all matter material and necessary” to the case. Broad on its face, but New York courts read it to mean reasonably related to the issues, not a license to rummage. For non-parties, CPLR 3101(a)(4) further requires the subpoena or an accompanying notice to state the circumstances or reasons the disclosure is needed.⁵ Subpoenas that read like fishing expeditions, especially against voluminous corporate or financial records without explanation, are routinely quashed.

Emails, Texts, and Social Media

Electronic evidence is fair game if it is relevant. CPLR 4518 lets electronic records come in as business records when they were created in the regular course of business, at or near the time of the event they document, and presented in a form the court finds accurate.⁶ Social media is a frequent battleground. In Forman v. Henkin, the Court of Appeals held that the threshold for discoverability of social media content is not whether posts are marked “private,” but whether the material is reasonably calculated to contain relevant information. The plaintiff’s pre-accident posts were held discoverable in a personal injury action because they could bear on her claimed loss of enjoyment of life.⁷

Privileged Material

Several categories are shielded even when otherwise relevant. Attorney-client communications are protected under CPLR 4503, physician-patient communications under CPLR 4504, and spousal communications under CPLR 4502.⁸⁹ Trade secrets and confidential business information can also be protected when the holder shows disclosure would cause economic harm.

Government, Medical, and School Records

Under CPLR 2307, a subpoena duces tecum directed to a library, department, or bureau of a municipal corporation or the state must be issued by a Supreme Court justice in the district where the records are kept, or by a judge of the court where the case will be tried.¹⁰ An attorney-issued subpoena will not do; you need judicial sign-off.

Medical records add another layer. Public Health Law § 18 governs patient access and interacts with CPLR disclosure rules. Substance use disorder treatment records carry federal protection under 42 CFR Part 2, which restricts their use in legal proceedings without patient consent or a court order.¹¹ Education records fall under FERPA, which allows disclosure in response to a subpoena only after the school makes a reasonable effort to notify the student or parent so they can seek a protective order.¹²

Challenging a Subpoena

Getting a subpoena does not mean automatic compliance. CPLR 2304 lets any recipient move to quash, modify, or set conditions on the subpoena.¹³ There is no fixed deadline in days, but the motion must be made “promptly” in the court where the subpoena is returnable. Waiting until the compliance date usually kills the motion.

If the subpoena came from outside a court (an arbitrator or administrative body, for example), CPLR 2304 requires you to first ask the issuer to withdraw or modify it. Only after refusal can you move to quash in Supreme Court.¹³

Common grounds include:

Overbreadth, where the demand sweeps far beyond what the case needs.
Undue burden, where compliance would take disproportionate time or expense.
Privilege, where the material is protected by attorney-client, physician-patient, spousal, or another recognized privilege.
Improper service, including missing witness fees or the wrong service method.
Lack of relevance to the litigation.

Courts have broad discretion under CPLR 2304 to impose reasonable conditions instead of quashing outright. That can mean narrowing the request, requiring a confidentiality agreement, or shifting production costs to the requesting party.

What Happens if a Subpoena Is Ignored

CPLR 2308 divides enforcement between court-issued subpoenas and those issued outside the court system, with sharply different consequences.

Court-Issued Subpoenas

Under CPLR 2308(a), refusing to comply with a subpoena issued by a judge, clerk, or court officer is punishable as contempt. The court can also strike a disobedient party’s pleadings. Beyond contempt, the non-compliant person faces a penalty of up to $150 plus any damages caused by the refusal. If the witness simply fails to appear, the court can issue a warrant directing a sheriff to bring them in. If the witness appears but refuses to testify, answer a proper question, or produce the documents, the court can jail that person until they comply or are discharged by law.¹⁴

Non-Judicial Subpoenas

For subpoenas not returnable in court, enforcement goes through a Supreme Court motion to compel. If the subpoena was properly authorized, the court orders compliance and can impose costs of up to $50. The penalty exposure is also lower: up to $50 plus damages.¹⁴

Contempt: Civil and Criminal

Judiciary Law § 753 gives courts of record broad power to punish civil contempt by fine, imprisonment, or both. Subdivision A(5) specifically covers subpoenaed witnesses who refuse or neglect to obey, attend, be sworn, or answer.¹⁵ Civil contempt is coercive; confinement typically ends when the witness agrees to cooperate.

Willful disobedience of a court’s lawful process can also be charged as criminal contempt in the second degree under Penal Law § 215.50(3), a Class A misdemeanor carrying up to one year in jail.¹⁶ Criminal contempt is punitive, not coercive, so a later change of heart does not undo the sentence.

Discovery Sanctions Against Parties

When a party (not a non-party witness) defies a disclosure order, CPLR 3126 authorizes case-shaping penalties:

Issue preclusion: the court treats disputed issues as resolved against the non-compliant party.
Evidence exclusion: the party is barred from introducing certain evidence or calling certain witnesses.
Dismissal or default: the court strikes pleadings, stays the case, dismisses the action, or enters a default judgment.¹⁷

These sanctions apply to parties, not non-party witnesses, and courts generally escalate from an order compelling disclosure toward dismissal or default as defiance continues.

Subpoenas That Cross State Lines

When evidence sits in another state, or an out-of-state case needs evidence in New York, CPLR 3119 supplies the mechanism through New York’s adoption of the Uniform Interstate Depositions and Discovery Act. A party in an out-of-state case obtains a subpoena from their home court and submits it to the county clerk in the New York county where discovery is sought. The clerk then issues a New York subpoena incorporating the original’s terms. If the party has retained a New York-licensed attorney, that attorney can issue the subpoena directly without going through the clerk.¹⁸

The resulting subpoena must comply with all standard New York rules, including service and witness fees. Any motion to quash or modify follows New York procedure, not the procedure of the state where the underlying case sits.¹⁸

CPLR 3119 also bars New York courts, county clerks, and attorneys from issuing subpoenas connected to out-of-state proceedings that relate to “legally protected health activity,” a term covering reproductive health care and gender-affirming care, unless the proceeding meets narrow exceptions such as a tort or contract claim brought by the person who received the care. A party who submits a false affirmation in connection with a CPLR 3119 subpoena faces a statutory penalty of $15,000 per violation when the falsehood was intentional or reckless.¹⁸

1
New York State Senate. New York Civil Practice Law and Rules CVP 2303
2
Justia. Kapon v Koch
3
New York State Senate. New York Civil Practice Law and Rules CVP 2302
4
New York State Senate. New York Civil Practice Law and Rules CVP 8001
5
New York State Senate. New York Civil Practice Law and Rules CVP 3101
6
New York State Senate. New York Civil Practice Law and Rules CVP R4518
7
Justia. Forman v Henkin
8
New York State Senate. New York Civil Practice Law and Rules CVP 4503
9
New York State Senate. New York Civil Practice Law and Rules CVP 4504
10
New York State Senate. New York Civil Practice Law and Rules CVP 2307
11
HHS.gov. Fact Sheet 42 CFR Part 2 Final Rule
12
Protecting Student Privacy: FERPA. Family Educational Rights and Privacy Act (FERPA)
13
New York State Senate. New York Civil Practice Law and Rules CVP 2304
14
New York State Senate. New York Civil Practice Law and Rules CVP 2308
15
New York State Senate. New York Judiciary Law 753
16
New York State Senate. New York Penal Law 215.50
17
New York State Senate. New York Civil Practice Law and Rules CVP 3126
18
New York State Senate. New York Civil Practice Law and Rules CVP 3119