Rule 26.General provisions governing disclosure and discovery
Part V: Depositions and Discovery · Last amended May 7, 2025 · Last verified July 13, 2026
Full Text of Rule 26
Amendment History
Amended effective Jan. 1, 1987; November 1, 1999; April 1, 2000; November 1, 2000; November 1, 2002; May 2, 2005; November 1, 2007; November 1, 2011; L. 2012, S.J.R. 15, § 1; April 1, 2013; May 1, 2015; November 1, 2021; L. 2022, H.J.R. 13, § 1, effective May 4, 2022; May 7, 2025.
Advisory Committee Notes
Advisory Committee Notes
Disclosure requirements and timing. Rule 26(a)(1). Not all information will be known at the outset of a case. If discovery is serving its proper purpose, additional witnesses, documents, and other information will be identified. The scope and the level of detail required in the initial Rule 26(a)(1) disclosures should be viewed in light of this reality. A party is not required to interview every witness it ultimately may call at trial in order to provide a summary of the witness’s expected testimony. As the information becomes known, it should be disclosed. No summaries are required for adverse parties, including management level employees of business entities, because opposing lawyers are unable to interview them and their testimony is available to their own counsel. For uncooperative or hostile witnesses any summary of expected testimony would necessarily be limited to the subject areas the witness is reasonably expected to testify about. For example, defense counsel may be unable to interview a treating physician, so the initial summary may only disclose that the witness will be questioned concerning the plaintiff’s diagnosis, treatment and prognosis. After medical records have been obtained, the summary may be expanded or refined.
Subject to the foregoing qualifications, the summary of the witness’s expected testimony should be just that — a summary. The rule does not require prefiled testimony or detailed descriptions of everything a witness might say at trial. On the other hand, it requires more than the broad, conclusory statements that often were made under the prior version of Rule 26(a)(1)(e.g., “The witness will testify about the events in question” or “The witness will testify on causation.”). The intent of this requirement is to give the other side basic information concerning the subjects about which the witness is expected to testify at trial, so that the other side may determine the witness’s relative importance in the case, whether the witness should be interviewed or deposed, and whether additional documents or information concerning the witness should be sought. See RJW Media Inc. v. Heath, 2017 UT App 34, ¶¶ 23-25, 392 P.3d 956. This information is important because of the other discovery limits contained in Rule 26.
Likewise, the documents that should be provided as part of the Rule 26(a)(1) disclosures are those that a party reasonably believes it may use at trial, understanding that not all documents will be available at the outset of a case. In this regard, it is important to remember that the duty to provide documents and witness information is a continuing one, and disclosures must be promptly supplemented as new evidence and witnesses become known as the case progresses.
Early disclosure of damages information is important. Among other things, it is a critical factor in determining proportionality. The committee recognizes that damages often require additional discovery, and typically are the subject of expert testimony. The Rule is not intended to require expert disclosures at the outset of a case. At the same time, the subject of damages should not simply be deferred until expert discovery. Parties should make a good faith attempt to compute damages to the extent it is possible to do so and must in any event provide all discoverable information on the subject, including materials related to the nature and extent of the damages.
The penalty for failing to make timely disclosures is that the evidence may not be used in the party’s case-in-chief. To make the disclosure requirement meaningful, and to discourage sandbagging, parties must know that if they fail to disclose important information that is helpful to their case, they will not be able to use that information at trial. The courts will be expected to enforce them unless the failure is harmless or the party shows good cause for the failure.
The purpose of early disclosure is to have all parties present the evidence they expect to use to prove their claims or defenses, thereby giving the opposing party the ability to better evaluate the case and determine what additional discovery is necessary and proportional.
Expert disclosures and timing. Rule 26(a)(3). Disclosure of the identity and subjects of expert opinions and testimony is automatic under Rule 26(a)(3) and parties are not required to serve interrogatories or use other discovery devices to obtain this information.
Experts frequently will prepare demonstrative exhibits or other aids to illustrate the expert’s testimony at trial, and the costs for preparing these materials can be substantial. For that reason, these types of demonstrative aids may be prepared and disclosed later, as part of the Rule 26(a)(4) pretrial disclosures when trial is imminent.
If a party elects a written report, the expert must provide a signed report containing a complete statement of all opinions the expert will express and the basis and reasons for them. The intent is not to require a verbatim transcript of exactly what the expert will say at trial; instead the expert must fairly disclose the substance of and basis for each opinion the expert will offer. The expert may not testify in a party’s case in chief concerning any matter that is not fairly disclosed in the report. To achieve the goal of making reports a reliable substitute for depositions, courts are expected to enforce this requirement. If a party elects a deposition, rather than a report, it is up to the party to ask the necessary questions to “lock in” the expert’s testimony. But the expert is expected to be fully prepared on all aspects of his/her trial testimony at the time of the deposition and may not leave the door open for additional testimony by qualifying answers to deposition questions.
There are a number of difficulties inherent in disclosing expert testimony that may be offered from fact witnesses. First, there is often not a clear line between fact and expert testimony. Many fact witnesses have scientific, technical or other specialized knowledge, and their testimony about the events in question often will cross into the area of expert testimony. The rules are not intended to erect artificial barriers to the admissibility of such testimony. Second, many of these fact witnesses will not be within the control of the party who plans to call them at trial. These witnesses may not be cooperative, and may not be willing to discuss opinions they have with counsel. Where this is the case, disclosures will necessarily be more limited. On the other hand, consistent with the overall purpose of the 2011 amendments, a party should receive advance notice if their opponent will solicit expert opinions from a particular witness so they can plan their case accordingly. In an effort to strike an appropriate balance, the rules require that such witnesses be identified and the information about their anticipated testimony should include that which is required under Rule 26(a)(1)(A)(ii), which should include any opinion testimony that a party expects to elicit from them at trial. If a party has disclosed possible opinion testimony in its Rule 26(a)(1)(A)(ii) disclosures, that party is not required to prepare a separate Rule 26(a)(4)(E) disclosure for the witness. And if that disclosure is made in advance of the witness’s deposition, those opinions should be explored in the deposition and not in a separate expert deposition. Otherwise, the timing for disclosure of non-retained expert opinions is the same as that for retained experts under Rule 26(a)(4)(C) and depends on whether the party has the burden of proof or is responding to another expert.
Scope of discovery — Proportionality. Rule 26(b). Proportionality is the principle governing the scope of discovery. Simply stated, it means that the cost of discovery should be proportional to what is at stake in the litigation.
In the past, the scope of discovery was governed by “relevance” or the “likelihood to lead to discovery of admissible evidence.” These broad standards may have secured just results by allowing a party to discover all facts relevant to the litigation. However, they did little to advance two equally important objectives of the rules of civil procedure — the speedy and inexpensive resolution of every action. Accordingly, the former standards governing the scope of discovery have been replaced with the proportionality standards in subpart (b)(1).
The concept of proportionality is not new. The prior rule permitted the Court to limit discovery methods if it determined that “the discovery was unduly burdensome or expensive, taking into account the needs of the case, the amount in controversy, limitations on the parties’ resources, and the importance of the issues at stake in the litigation.” The Federal Rules of Civil Procedure contains a similar provision. See Fed. R. Civ. P. 26(b)(2)(C).
Any system of rules which permits the facts and circumstances of each case to inform procedure cannot eliminate uncertainty. Ultimately, the trial court has broad discretion in deciding whether a discovery request is proportional. The proportionality standards in subpart (b)(2) and the discovery tiers in subpart (c) mitigate uncertainty by guiding that discretion. The proper application of the proportionality standards will be defined over time by trial and appellate courts.
Standard and extraordinary discovery. Rule 26(c). As a counterpart to requiring more detailed disclosures under Rule 26(a), the 2011 amendments place new limitations on additional discovery the parties may conduct. Because the committee expects the enhanced disclosure requirements will automatically permit each party to learn the witnesses and evidence the opposing side will offer in its case-in-chief, additional discovery should serve the more limited function of permitting parties to find witnesses, documents, and other evidentiary materials that are harmful, rather than helpful, to the opponent’s case.
Parties are expected to be reasonable and accomplish as much as they can during standard discovery. A statement of discovery issues may result in additional discovery and sanctions at the expense of a party who unreasonably fails to respond or otherwise frustrates discovery. After the expiration of the applicable time limitation, a case is presumed to be ready for trial. Actions for non-monetary relief, such as injunctive relief, are subject to the standard discovery limitations of Tier 2, absent an accompanying monetary claim of $300,000 or more, in which case Tier 3 applies.
Consequences of failure to disclose. Rule 26(d). If a party fails to disclose or to supplement timely its discovery responses, that party cannot use the undisclosed witness, document, or material at any hearing or trial, absent proof that non-disclosure was harmless or justified by good cause. More complete disclosures increase the likelihood that the case will be resolved justly, speedily, and inexpensively. Not being able to use evidence that a party fails properly to disclose provides a powerful incentive to make complete disclosures. This is true only if trial courts hold parties to this standard. Accordingly, although a trial court retains discretion to determine how properly to address this issue in a given case, the usual and expected result should be exclusion of the evidence.
Legislative Note. —
Note adopted 2012
S.J.R.15
(1) The amended language in paragraph (b)(1) is intended to incorporate long-standing protections against discovery and admission into evidence of privileged matters connected to medical care review and peer review into the Utah Rules of Civil Procedure. These privileges, found in both Utah common law and statute, include Sections 26-25-3, 58-13-4, and 58-13-5, UCA, 1953. The language is intended to ensure the confidentiality of peer review, care review, and quality assurance processes and to ensure that the privilege is limited only to documents and information created specifically as part of the processes. It does not extend to knowledge gained or documents created outside or independent of the processes. The language is not intended to limit the court’s existing ability, if it chooses, to review contested documents in camera in order to determine whether the documents fall within the privilege. The language is not intended to alter any existing law, rule, or regulation relating to the confidentiality, admissibility, or disclosure of proceedings before the Utah Division of Occupational and Professional Licensing. The Legislature intends that these privileges apply to all pending and future proceedings governed by court rules, including administrative proceedings regarding licensing and reimbursement.
(2) The Legislature does not intend that the amendments to this rule be construed to change or alter a final order concerning discovery matters entered on or before the effective date of this amendment.
(3) The Legislature intends to give the greatest effect to its amendment, as legally permissible, in matters that are pending on or may arise after the effective date of this amendment, without regard to when the case was filed.
Effective date. Upon approval by a constitutional two-thirds vote of all members elected to each house. [March 6, 2012]
The May 7, 2025 effective date is upon approval by a constitutional two-thirds vote of all members elected to each house.
Plain-English Summary
Rule 26 replaced the old model of discovery-by-request with a model built around automatic disclosure. Unless a case is exempt — judicial review of agency action, extraordinary writs under Rule 65B or 65C, arbitration-award enforcement, and general water-rights adjudications are carved out — every party must, without waiting to be asked, hand over the people likely to have discoverable information, the fact witnesses expected to testify along with a summary of their testimony, the documents and evidence the party may use in its case-in-chief, a computation of claimed damages with the material behind it, indemnity or judgment-sharing agreements, and any documents cited in the pleadings. Plaintiffs must serve these initial disclosures within 14 days after the first answer to the complaint is filed; defendants get 42 days after their own first answer. A separate track governs expert testimony: a party must disclose a retained expert's qualifications, opinions, and the facts and compensation behind them, and the opposing side then elects either a deposition (capped at four hours, with the deposing party paying the expert's hourly fee) or a signed written report — the expert generally can't testify at trial beyond what that report or deposition covers. Non-retained experts, such as a treating physician, get a lighter-touch summary disclosure instead of a full report. A last round of pretrial disclosures — final witness and exhibit lists, deposition designations — comes due at least 28 days before trial, with objections due 14 days out.
The scope of discovery itself turns on proportionality, not just relevance. Information is discoverable if it's relevant to a claim or defense and passes a six-factor proportionality test weighing the stakes, the parties' resources, the burden against the likely benefit, whether the information is available more easily elsewhere, and whether the case-management goals of a just, speedy, and inexpensive resolution are served. The party seeking discovery carries the burden of showing both relevance and proportionality. Rule 26(b) also carries forward familiar protections — trial-preparation (work-product) materials are shielded absent substantial need and undue hardship in getting equivalent material elsewhere, an attorney's mental impressions and legal theories stay protected even when underlying facts are produced, and communications between a party's attorney and a testifying expert are largely off-limits except for compensation, facts the attorney supplied, and assumptions the attorney gave the expert to work from. A newer set of provisions shields specific categories of health-care peer-review and medical-candor-process communications from discovery and use, subject to narrow exceptions for records kept in the ordinary course of business or required by law.
Beyond the scope of discovery, Rule 26(c) sorts every case into one of four tiers based on the damages claimed, and each tier caps how much standard fact discovery a side can take, measured from the date the first defendant's initial disclosure is due. Tier 1 — claims of $50,000 or less — allows 3 hours of fact deposition time, no interrogatories, 5 requests for production, 5 requests for admission, and 120 days to complete standard fact discovery. Tier 2 — more than $50,000 and less than $300,000, or non-monetary relief without an accompanying claim over $300,000 — allows 15 deposition hours, 10 interrogatories, 10 production requests, 10 admission requests, and 180 days. Tier 3 — $300,000 or more — allows 30 deposition hours, 20 interrogatories, 20 production requests, 20 admission requests, and 210 days. Tier 4, for domestic relations actions, allows 4 deposition hours, 10 interrogatories, 10 production requests, 10 admission requests, and 90 days. A party who needs more than a tier allows can seek extraordinary discovery — by stipulation that it's necessary and proportional, by motion under Rule 37, or by obtaining an expanded discovery schedule under Rule 100A. Finally, Rule 26(d) requires disclosures and discovery responses to be based on information then known or reasonably available, requires prompt supplementation when a disclosure turns out incomplete or incorrect, and backs all of this with a real penalty: a party who fails to disclose or timely supplement generally can't use the undisclosed witness or material at a hearing or trial unless the failure was harmless or excused for good cause.
Frequently Asked Questions
What are initial disclosures under Utah Rule 26, and when are they due?
Initial disclosures are the information every party must hand over automatically, without waiting for a discovery request: likely witnesses and a summary of expected testimony, documents and evidence a party may use in its case-in-chief, a damages computation and its backup, indemnity agreements, and documents referenced in the pleadings. Plaintiffs must serve them within 14 days after the first answer to the complaint is filed; defendants within 42 days after their own first answer.
What does “proportional” mean for Utah discovery requests?
Proportionality weighs the needs of the case, the amount in controversy, the case's complexity, the parties' resources, the importance of the issues and of the discovery itself, whether the burden or expense outweighs the likely benefit, whether the discovery is cumulative or available more easily elsewhere, and whether the requesting party has already had a fair opportunity to get the information. The party seeking discovery has the burden of showing it's proportional and relevant.
How does the discovery tier system work in Utah civil cases?
Every case is placed in one of four tiers based on the damages claimed in the original pleadings, and each tier caps standard fact discovery per side: Tier 1 ($50,000 or less) allows 3 deposition hours, no interrogatories, 5 production requests, and 5 admission requests over 120 days; Tier 2 (more than $50,000 and less than $300,000, or non-monetary relief) allows 15 hours, 10 of each request type, over 180 days; Tier 3 ($300,000 or more) allows 30 hours, 20 of each request type, over 210 days; and Tier 4 (domestic relations actions) allows 4 hours, 10 of each request type, over 90 days.
What if I need more discovery than my case's tier allows?
You can seek extraordinary discovery before standard discovery closes, either by filing a stipulated statement (with each attorney confirming they consulted their client) that extraordinary discovery is necessary and proportional, by moving under Rule 37, or by obtaining an expanded discovery schedule under Rule 100A.
How does expert discovery work under Rule 26?
The party with the burden of proof on an issue discloses its retained expert's qualifications, opinions, and supporting facts first; the opposing party then elects either a deposition — capped at four hours, paid for by the deposing party — or a signed written report covering all the expert's trial opinions. Later deadlines cover the responding party's experts and any rebuttal experts, each triggered by the prior disclosure or election.
What happens if I don't disclose a witness or document on time?
Rule 26(d) generally bars using that undisclosed witness, document, or material at a hearing or trial, unless the failure to disclose was harmless or the party shows good cause for it.
Are settlement talks or peer-review records discoverable in Utah?
Rule 26(b)(2) shields specific categories, including health-care peer-review and quality-assurance materials and communications created specifically for a medical-candor process, from discovery and admission, subject to exceptions for records that would otherwise be routine business or medical records.
Do I have to file my discovery requests and responses with the court?
No. Rule 26(f) requires that disclosures, discovery requests, and responses be served on the other parties, not filed with the court, except when a rule or court order requires filing; instead, the filer submits a certificate of service.