UBE Discovery
Last updated: May 2, 2026
Discovery questions are one of the highest-leverage areas to study for the UBE. This guide breaks down the rule, the elements you need to recognize, the named traps that catch most students, and a memory aid that scales to test day. Read it once, then practice the same sub-topic adaptively in the app.
The rule
Under Federal Rule of Civil Procedure 26(b)(1), parties may obtain discovery of any nonprivileged matter that is relevant to any party's claim or defense and proportional to the needs of the case. Discovery need not be admissible at trial; it need only be reasonably calculated to lead to admissible evidence is the OLD formulation — the post-2015 standard requires both relevance AND proportionality. Mandatory initial disclosures (Rule 26(a)(1)), expert disclosures (Rule 26(a)(2)), and pretrial disclosures (Rule 26(a)(3)) operate without a discovery request. The principal devices are depositions (30/31), interrogatories (33), requests for production (34), physical/mental examinations (35), and requests for admission (36); failures are policed under Rule 37.
Elements breakdown
Scope of Discovery (Rule 26(b)(1))
Parties may discover any nonprivileged matter relevant to a claim or defense and proportional to the needs of the case.
- Matter is nonprivileged
- Relevant to a claim or defense
- Proportional to needs of the case
- Need not be admissible at trial
Common examples:
- Proportionality factors: importance of issues, amount in controversy, parties' access to information, parties' resources, importance of discovery in resolving issues, burden vs. likely benefit
Required Initial Disclosures (Rule 26(a)(1))
Without awaiting a discovery request, each party must disclose core categories of information within 14 days of the Rule 26(f) conference.
- Names/contacts of likely-discoverable witnesses
- Copies or descriptions of supporting documents
- Computation of damages claimed
- Insurance agreements potentially covering judgment
Expert Witness Disclosures (Rule 26(a)(2))
Parties must disclose testifying experts and, for retained experts, produce a written report.
- Identity of each testifying expert
- Written report for retained experts
- Report contains opinions, bases, data, qualifications, prior cases, compensation
- Disclosure at least 90 days before trial absent court order
Work Product Doctrine (Rule 26(b)(3))
Documents and tangible things prepared in anticipation of litigation by or for a party or its representative are protected from discovery absent substantial need.
- Document or tangible thing
- Prepared in anticipation of litigation or for trial
- Prepared by or for party or party's representative
- Overcome only by substantial need plus undue hardship to obtain equivalent
- Mental impressions of counsel receive near-absolute protection
Depositions (Rules 30, 31)
Oral or written examination of a party or nonparty under oath, recorded by an authorized officer.
- Reasonable written notice to every party
- Limit of 10 depositions per side absent leave
- One day of 7 hours per deponent
- Nonparty compelled by Rule 45 subpoena
- Objections noted but examination proceeds
Interrogatories (Rule 33)
Written questions served on a party that must be answered under oath in writing.
- Served only on parties
- Maximum 25 including discrete subparts
- Answer or object within 30 days
- Answers signed under oath by party
- May be used at trial to extent admissible
Requests for Production (Rule 34)
Written requests requiring a party to produce documents, ESI, or tangible things, or permit entry on land for inspection.
- Served on parties (Rule 45 for nonparties)
- Reasonable particularity in description
- Response within 30 days
- Produce as kept in usual course or organized by request
- ESI in reasonably usable form
Physical or Mental Examinations (Rule 35)
On motion for good cause and notice, the court may order a party whose mental or physical condition is in controversy to submit to examination.
- Mental or physical condition in controversy
- Good cause shown
- Court order required (cannot self-execute)
- Notice specifying time, place, manner, scope, examiner
- Suitably licensed or certified examiner
Requests for Admission (Rule 36)
Written requests asking a party to admit the truth of facts, application of law to fact, or genuineness of documents.
- Served only on parties
- Answer, objection, or qualified denial within 30 days
- Failure to respond = admission
- Admitted matters conclusively established
- Withdrawal/amendment requires court permission
Duty to Supplement (Rule 26(e))
A party must supplement or correct disclosures and discovery responses in a timely manner if the prior response is incomplete or incorrect and the corrective information is not otherwise known.
- Prior disclosure or response
- Subsequently learned to be incomplete or incorrect
- Corrective information not otherwise known to other parties
- Timely supplementation required
Discovery Sanctions (Rule 37)
After meet-and-confer, a party may move to compel; failure to comply with a discovery order or with required disclosures triggers escalating sanctions.
- Good faith meet-and-confer certification
- Order compelling disclosure or discovery
- Sanctions: fees, deemed-established facts, preclusion, strike pleadings, default, dismissal, contempt
- Rule 37(e) governs lost ESI: prejudice-based curative measures or, on intent to deprive, adverse inference/default/dismissal
Common patterns and traps
The Privilege-vs-Work-Product Cut
Bar questions love to disguise work product as attorney-client privilege or vice versa. The privilege protects confidential communications between attorney and client made for the purpose of legal advice. Work product protects materials prepared in anticipation of litigation, even when prepared by a non-lawyer (investigator, paralegal, insurer). The right answer turns on what the document IS and WHO prepared it — not whether a lawyer was somewhere in the chain.
An answer choice says 'inadmissible because attorney-client privileged' when the document is an investigator's report prepared at counsel's direction post-accident — that's work product, not privilege.
The Rule 35 Triple-Lock
Rule 35 is the only discovery device that requires a court order — it is NOT self-executing on a party's notice. The party seeking the exam must show (1) the mental/physical condition is in controversy, (2) good cause, and (3) obtain a court order specifying time, place, manner, scope, and examiner. Wrong answers say 'no, because the party did not consent' or 'yes, because notice was proper.'
An answer says the exam is allowed because 'reasonable notice was given' — wrong, because Rule 35 requires a court order, not just notice.
The Proportionality Override
Post-2015 amendments elevated proportionality from a separate limit into the definition of scope. A request can be relevant and nonprivileged yet still outside scope because it is disproportionate. The factors include amount in controversy, importance of issues, parties' relative access to information, and burden vs. benefit.
An answer says 'discoverable because relevant to a claim' without addressing proportionality — relevance alone is no longer sufficient.
The Sanctions Ladder
Rule 37 sanctions escalate. A first-line response to noncompliance is a motion to compel after meet-and-confer; only after a court order is violated do issue-preclusion, default, and dismissal become available. ESI loss (Rule 37(e)) requires intent to deprive before adverse-inference instructions or terminating sanctions.
An answer imposes default judgment on the first discovery failure without a prior court order to compel — wrong, the court must usually compel first.
The Numerical-Limit Trap
Each device has a hard numerical limit absent leave: 25 interrogatories (counting discrete subparts), 10 depositions per side, 7 hours per deponent in one day. Wrong answers pretend a party can ignore these without leave or stipulation.
An answer says 'the interrogatories are proper because they are relevant' — but the count exceeds 25, so they are objectionable on the cap regardless of relevance.
How it works
Picture this. Patel sues Reyes Manufacturing, Inc. in federal court for products liability after a press machine injures her hand. Patel serves 28 interrogatories and notices the deposition of Reyes's plant manager. The 28-interrogatory count is your first trap — Rule 33 caps interrogatories at 25, including discrete subparts, so Reyes can object to numbers 26–28 without leave of court. Patel also serves a Rule 35 request demanding Reyes's CEO submit to a psychological exam; this fails because the CEO's mental condition is not "in controversy" — Rule 35 requires both that condition be in controversy and that the court enter an order on a showing of good cause. Meanwhile, Reyes withholds an internal memo prepared by in-house counsel two weeks after the accident analyzing liability exposure — this is classic Rule 26(b)(3) work product, and the mental-impressions portion is nearly absolutely protected. Finally, Patel fails to supplement her damages computation after a new medical opinion; Rule 26(e) makes that a sanctionable omission under Rule 37(c)(1), which presumptively excludes the new evidence at trial.
Worked examples
How should the court rule on Liu's motion to compel?
- A Grant the motion, because attorney-client privilege does not apply to communications with non-lawyer employees.
- B Grant the motion in full, because work product protection applies only to documents personally drafted by an attorney.
- C Deny the motion as to the credibility assessments and grant it as to the verbatim witness statements only on a showing of substantial need and undue hardship. ✓ Correct
- D Grant the motion, because materials prepared within 30 days of an accident are presumptively in the ordinary course of business, not in anticipation of litigation.
Why C is correct: Rule 26(b)(3) protects documents prepared in anticipation of litigation by or for a party or the party's representative — including non-lawyer agents like a risk manager working at counsel's direction. Ordinary fact work product (the witness statements) yields only on a showing of substantial need plus undue hardship in obtaining the equivalent elsewhere. Opinion work product (the manager's credibility assessments and mental impressions) receives near-absolute protection and is not discoverable on the facts shown.
Why each wrong choice fails:
- A: This conflates attorney-client privilege with work product. Reyes is asserting work product, which expressly extends to materials prepared by non-lawyer representatives. Whether the privilege applies is a separate question Reyes did not raise. (The Privilege-vs-Work-Product Cut)
- B: Rule 26(b)(3) protects materials prepared by or for a party or its representative — including risk managers, investigators, and insurers acting at counsel's direction. Authorship by an attorney is not a prerequisite. (The Privilege-vs-Work-Product Cut)
- D: There is no 30-day rule. The test is whether the document was prepared because of anticipated litigation, judged by the totality of circumstances — and a memo prepared at outside counsel's direction shortly after a serious workplace injury is paradigmatic anticipation-of-litigation work product.
How should the court rule on Cordero's motion for sanctions?
- A Grant sanctions, because Patel placed her mental condition in controversy and Cordero's notice satisfied Rule 35.
- B Deny sanctions, because Rule 35 examinations require a court order on motion and good cause shown — a unilateral notice is ineffective. ✓ Correct
- C Grant sanctions, because Rule 37 permits issue preclusion for any failure to participate in discovery.
- D Deny sanctions, because emotional-distress claims do not place mental condition in controversy.
Why B is correct: Rule 35 is unique among discovery devices in that it cannot be invoked by a party's unilateral notice or request. The examining party must move the court, demonstrate good cause, and show that the condition is in controversy; the court then issues an order specifying the time, place, manner, scope, and examiner. Patel's refusal to attend an examination compelled only by notice cannot trigger Rule 37 sanctions because there is no underlying order or rule-mandated obligation to comply.
Why each wrong choice fails:
- A: Even if mental condition is in controversy and notice was detailed, Rule 35 still requires a court order. The order is the operative trigger; notice alone does not bind a party to appear. (The Rule 35 Triple-Lock)
- C: Rule 37 sanctions, especially issue-preclusion or terminating sanctions, generally require violation of a prior court order or a self-executing rule duty. With no Rule 35 order in place, there is nothing for Patel to have violated. (The Sanctions Ladder)
- D: A garden-variety emotional-distress allegation may or may not place mental condition in controversy, but the controlling defect is procedural: no court order issued. The motion fails on the procedural ground regardless of the substantive 'in controversy' analysis.
How should the court rule on Okafor's motion to compel?
- A Grant the motion, because relevance to a claim or defense is the sole test under Rule 26(b)(1).
- B Grant the motion, because the burden of production always falls on the responding party.
- C Deny the motion, because the requests are disproportionate to the needs of the case under Rule 26(b)(1). ✓ Correct
- D Deny the motion, because email and GPS data prepared in the ordinary course of business are categorically nondiscoverable.
Why C is correct: Since the 2015 amendments, Rule 26(b)(1) limits the scope of discovery to matter that is both relevant and proportional to the needs of the case. The proportionality factors — the amount in controversy ($85,000), the importance of issues, the parties' relative access to information, and the burden vs. likely benefit — overwhelmingly favor Beltran here, where Okafor demands seven years of fleet-wide records to litigate a single collision. The court should sustain the proportionality objection and deny the motion as drafted.
Why each wrong choice fails:
- A: This recites the pre-2015 standard. Relevance alone is no longer enough; proportionality is now embedded in the definition of scope and applies even when the material is concededly relevant. (The Proportionality Override)
- B: Burden does not 'always' fall on the responding party — it is one of the proportionality factors that the court weighs. Cost-shifting is available, and disproportionately burdensome requests can be denied outright. (The Proportionality Override)
- D: Ordinary-course business records are routinely discoverable, including ESI like emails and GPS data. There is no categorical exclusion; the limitation here is proportionality, not subject matter.
Memory aid
Devices mnemonic: "DIRPA" — Depositions, Interrogatories, Requests for production, Physical/mental exams, Admissions. Scope mnemonic: "RNP" — Relevant, Nonprivileged, Proportional. For Rule 35: "In Controversy + Good Cause + Court Order" — all three required.
Key distinction
Attorney-client privilege vs. work product doctrine. Attorney-client privilege protects confidential communications between client and lawyer for legal advice and is absolute (no substantial-need exception). Work product (Rule 26(b)(3)) protects materials prepared in anticipation of litigation, applies to lawyer AND non-lawyer agents, and yields to a showing of substantial need plus undue hardship — except for opinion work product (mental impressions, conclusions, legal theories), which is virtually never discoverable.
Summary
Federal discovery under Rules 26–37 is broad but bounded by relevance, proportionality, privilege, and work product, executed through five core devices with strict numerical and procedural limits and enforced through Rule 37's escalating sanctions.
Practice discovery adaptively
Reading the rule is the start. Working UBE-format questions on this sub-topic with adaptive selection, watching your mastery score climb in real time, and seeing the items you missed return on a spaced-repetition schedule — that's where score lift actually happens. Free for seven days. No credit card required.
Start your free 7-day trialFrequently asked questions
What is discovery on the UBE?
Under Federal Rule of Civil Procedure 26(b)(1), parties may obtain discovery of any nonprivileged matter that is relevant to any party's claim or defense and proportional to the needs of the case. Discovery need not be admissible at trial; it need only be reasonably calculated to lead to admissible evidence is the OLD formulation — the post-2015 standard requires both relevance AND proportionality. Mandatory initial disclosures (Rule 26(a)(1)), expert disclosures (Rule 26(a)(2)), and pretrial disclosures (Rule 26(a)(3)) operate without a discovery request. The principal devices are depositions (30/31), interrogatories (33), requests for production (34), physical/mental examinations (35), and requests for admission (36); failures are policed under Rule 37.
How do I practice discovery questions?
The fastest way to improve on discovery is targeted, adaptive practice — working questions that focus on your specific weak spots within this sub-topic, getting immediate feedback, and revisiting items you missed on a spaced-repetition schedule. Neureto's adaptive engine does this automatically across the UBE; start a free 7-day trial to see your sub-topic mastery climb in real time.
What's the most important distinction to remember for discovery?
Attorney-client privilege vs. work product doctrine. Attorney-client privilege protects confidential communications between client and lawyer for legal advice and is absolute (no substantial-need exception). Work product (Rule 26(b)(3)) protects materials prepared in anticipation of litigation, applies to lawyer AND non-lawyer agents, and yields to a showing of substantial need plus undue hardship — except for opinion work product (mental impressions, conclusions, legal theories), which is virtually never discoverable.
Is there a memory aid for discovery questions?
Devices mnemonic: "DIRPA" — Depositions, Interrogatories, Requests for production, Physical/mental exams, Admissions. Scope mnemonic: "RNP" — Relevant, Nonprivileged, Proportional. For Rule 35: "In Controversy + Good Cause + Court Order" — all three required.
What's a common trap on discovery questions?
Confusing attorney-client privilege with work product
What's a common trap on discovery questions?
Treating Rule 35 examinations as self-executing without a court order
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