Federal Rules Of Civil Procedure Relating To Expert Witnesses
Rule 26. General Provisions Governing Discovery; Duty of Disclosure
(a) REQUIRED DISCLOSURES; METHODS TO DISCOVER ADDITIONAL MATTER.
(1) Initial Disclosures. Except in categories of proceedings specified in Rule 26(a)(1)(E), or to the extent otherwise stipulated or directed by order, a party must, without awaiting a discovery request, provide to other parties:
(A) the name and, if known, the address and telephone number of each individual likely to have discoverable information that the disclosing party may use to support its claims or defenses, unless solely for impeachment, identifying the subjects of the information;
(B) a copy of, or a description by category and location of, all documents, electronically stored information, and
tangible things that are in the possession, custody, or control of the party and that the disclosing party may use to
support its claims or defenses, unless solely for impeachment;
(C) a computation of any category of damages claimed by the disclosing party, making available for inspection
and copying as under Rule 34 the documents or other evidentiary material, not privileged or protected from disclosure, on which such computation is based, including materials bearing on the nature and extent of injuries suffered; and
(D) for inspection and copying as under Rule 34 any insurance agreement under which any person carrying on an
insurance business may be liable to satisfy part or all of a judgment which may be entered in the action or to indemnify or reimburse for payments made to satisfy the judgment.
(E) The following categories of proceedings are exempt from initial disclosure under Rule 26(a)(1):
(i) an action for review on an administrative record;
(ii) a forfeiture action in rem arising from a federal statute;
(iii) a petition for habeas corpus or other proceeding to challenge a criminal conviction or sentence;
(iv) an action brought without counsel by a person in custody of the United States, a state, or a state subdivision;
(v) an action to enforce or quash an administrative summons or subpoena;
(vi) an action by the United States to recover benefit payments;
(vii) an action by the United States to collect on a student loan guaranteed by the United States;
(viii) a proceeding ancillary to proceedings in other courts; and
(ix) an action to enforce an arbitration award.
These disclosures must be made at or within 14 days after the Rule 26(f) conference unless a different time is set by stipulation or court order, or unless a party objects during the conference that initial disclosures are not appropriate in the circumstances of the action and states the objection in the Rule 26(f) discovery plan. In ruling on the objection, the court must determine what disclosures—if any—are to be made, and set the time for disclosure. Any party first served or otherwise joined after the Rule 26(f) conference must make these disclosures within 30 days after being served or joined unless a different time is set by stipulation or court order. A party must make its initial disclosures based on the information then reasonably available to it and is not excused from making its disclosures because it has not fully completed its investigation of the case or because it challenges the sufficiency of another party’s disclosures or because another party has not made its disclosures.
(2) Disclosure of Expert Testimony.
(A) In addition to the disclosures required by paragraph (1), a party shall disclose to other parties the identity of
any person who may be used at trial to present evidence under Rules 702, 703, or 705 of the Federal Rules of Evidence.
(B) Except as otherwise stipulated or directed by the court, this disclosure shall, with respect to a witness who
is retained or specially employed to provide expert testimony in the case or whose duties as an employee of the
party regularly involve giving expert testimony, be accompanied by a written report prepared and signed by the witness.
The report shall contain a complete statement of all opinions to be expressed and the basis and reasons therefor;
the data or other information considered by the witness in forming the opinions; any exhibits to be used as a
summary of or support for the opinions; the qualifications of the witness, including a list of all publications authored
by the witness within the preceding ten years; the compensation to be paid for the study and testimony; and a
listing of any other cases in which the witness has testified as an expert at trial or by deposition within the preceding
(C) These disclosures shall be made at the times and in the sequence directed by the court. In the absence of other directions from the court or stipulation by the parties, the disclosures shall be made at least 90 days before the trial
date or the date the case is to be ready for trial or, if the evidence is intended solely to contradict or rebut evidence
on the same subject matter identified by another party under paragraph (2)(B), within 30 days after the disclosure
made by the other party. The parties shall supplement these disclosures when required under subdivision (e)(1).
(3) Pretrial Disclosures. In addition to the disclosures required by Rule 26(a)(1) and (2), a party must provide to other parties and promptly file with the court the following information regarding the evidence that it may present at trial other than solely for impeachment:
(A) the name and, if not previously provided, the address and telephone number of each witness, separately identifying those whom the party expects to present and those whom the party may call if the need arises;
(B) the designation of those witnesses whose testimony is expected to be presented by means of a deposition and,
if not taken stenographically, a transcript of the pertinent portions of the deposition testimony; and
(C) an appropriate identification of each document or other exhibit, including summaries of other evidence, separately identifying those which the party expects to offer and those which the party may offer if the need arises.
Unless otherwise directed by the court, these disclosures must be made at least 30 days before trial. Within 14 days thereafter, unless a different time is specified by the court, a party may serve and promptly file a list disclosing (i) any objections to the use under Rule 32(a) of a deposition designated by another party under Rule 26(a)(3)(B), and (ii) any objection, together with the grounds therefor, that may be made to the admissibility of materials identified under Rule 26(a)(3)(C). Objections not so disclosed, other than objections under Rules 402 and 403 of the Federal Rules of Evidence, are waived unless excused by the court for good cause.
(4) Form of Disclosures. Unless the court orders otherwise, all disclosures under Rules 26(a)(1) through (3) must be made in writing, signed, and served.
(5) Methods to Discover Additional Matter. Parties may obtain discovery by one or more of the following methods: depositions upon oral examination or written questions; written interrogatories; production of documents or things or permission to enter upon land or other property under Rule 34 or 45(a)(1)(C), for inspection and other purposes; physical and mental examinations; and requests for admission.
(b) DISCOVERY SCOPE AND LIMITS. Unless otherwise limited by order of the court in accordance with these rules, the scope of discovery is as follows:
(1) In General.
Parties may obtain discovery regarding any matter, not privileged, that is relevant to the claim or defense of any party, including the existence, description, nature, custody, condition, and location of any books, documents, or other tangible things and the identity and location of persons having knowledge of any discoverable matter. For good cause, the court may order discovery of any matter relevant to the subject matter involved in the action. Relevant information need not be admissible at the trial if the discovery appears reasonably calculated to lead to the discovery of admissible evidence. All discovery is subject to the limitations imposed by Rule 26(b)(2)(i), (ii), and (iii).
(A) By order, the court may alter the limits in these rules on the number of depositions and interrogatories or
the length of depositions under Rule 30. By order or local rule, the court may also limit the number of requests
under Rule 36.
(B) A party need not provide discovery of electronically stored information from sources that the party identifies
as not reasonably accessible because of undue burden or cost. On motion to compel discovery or for a protective
order, the party from whom discovery is sought must show that the information is not reasonably accessible because of undue burden or cost. If that showing is made, the court may nonetheless order discovery from such sources if the requesting party shows good cause, considering the limitations of Rule 26(b)(2)(C). The court may specify conditions for the discovery.
(C) The frequency or extent of use of the discovery methods otherwise permitted under these rules and by any local rule shall be limited by the court if it determines that: (i) the discovery sought is unreasonably cumulative or duplicative, or is obtainable from some other source that is more convenient, less burdensome, or less expensive; (ii) the party seeking discovery has had ample opportunity by discovery in the action to obtain the information sought; or (iii) the burden or expense of the proposed discovery outweighs its likely benefit, taking into account the needs of the case, the amount in controversy, the parties’ resources, the importance of the issues at stake in the litigation, and the importance of the proposed discovery in resolving the issues. The court may act upon its own initiative after reasonable notice or pursuant to a motion under Rule 26(c).
(3) Trial Preparation: Materials.
Subject to the provisions of subdivision (b)(4) of this rule, a party may obtain discovery of documents and tangible things otherwise discoverable under subdivision (b)(1) of this rule and prepared in anticipation of litigation or for trial by or for another party or by or for that other party’s representative (including the other party’s attorney, consultant, surety, indemnitor, insurer, or agent) only upon a showing that the party seeking discovery has substantial need of the materials in the preparation of the party’s case and that the party is unable without undue hardship to obtain the substantial equivalent of the materials by other means. In ordering discovery of such materials when the required showing has been made, the court shall protect against disclosure of the mental impressions, conclusions, opinions, or legal theories of an attorney or other representative of a party concerning the litigation.
A party may obtain without the required showing a statement concerning the action or its subject matter previously made by that party. Upon request, a person not a party may obtain without the required showing a statement concerning the action or its subject matter previously made by that person. If the request is refused, the person may move for a court order. The provisions of Rule 37(a)(4) apply to the award of expenses incurred in relation to the motion. For purposes of this paragraph, a statement previously made is (A) a written statement signed or otherwise adopted or approved by the person making it, or (B) a stenographic, mechanical, electrical, or other recording, or a transcription thereof, which is a substantially verbatim recital of an oral statement by the person making it and contemporaneously recorded.
(4) Trial Preparation: Experts.
(A) A party may depose any person who has been identified as an expert whose opinions may be presented at trial. If a report from the expert is required under subdivision(a)(2)(B), the deposition shall not be conducted until after the report is provided.
(B) A party may, through interrogatories or by deposition, discover facts known or opinions held by an expert who has been retained or specially employed by another party in anticipation of litigation or preparation for trial and who is not expected to be called as a witness at trial only as provided in Rule 35(b) or upon a showing of exceptional circumstances under which it is impracticable for the party seeking discovery to obtain facts or opinions on the same subject by other means.
(C) Unless manifest injustice would result, (i) the court shall require that the party seeking discovery pay the expert a reasonable fee for time spent in responding to discovery under this subdivision; and (ii) with respect to discovery obtained under subdivision (b)(4)(B) of this rule the court shall require the party seeking discovery to pay the other party a fair portion of the fees and expenses reasonably incurred by the latter party in obtaining facts and opinions from the expert.
(5) Claims of Privilege or Protection of Trial-Preparation Materials.
(A) Information Withheld. When a party withholds information otherwise discoverable under these rules by claiming that it is privileged or subject to protection as trialpreparation material, the party shall make the claim expressly and shall describe the nature of the documents, communications, or things not produced or disclosed in a manner that, without revealing information itself privileged or protected, will enable other parties to assess the applicability of the privilege or protection.
(B) Information Produced. If information is produced in discovery that is subject to a claim of privilege or of protection as trial-preparation material, the party making the claim may notify any party that received the information of the claim and the basis for it. After being notified, a party must promptly return, sequester, or destroy the specified information and any copies it has and may not use or disclose the information until the claim is resolved. A receiving party may promptly present the information to the court under seal for a determination of the claim. If the receiving party disclosed the information before being notified, it must take reasonable steps to retrieve it. The producing party must preserve the information until the claim is resolved.
(c) PROTECTIVE ORDERS. Upon motion by a party or by the person from whom discovery is sought, accompanied by a certification that the movant has in good faith conferred or attempted to confer with other affected parties in an effort to resolve the dispute without court action, and for good cause shown, the court in which the action is pending or alternatively, on matters relating to a deposition, the court in the district where the deposition is to be taken may make any order which justice requires to protect a party or person from annoyance, embarrassment, oppression, or undue burden or expense, including one or more of the following:
(1) that the disclosure or discovery not be had;
(2) that the disclosure or discovery may be had only on specified terms and conditions, including a designation of the time or place;
(3) that the discovery may be had only by a method of discovery other than that selected by the party seeking discovery;
(4) that certain matters not be inquired into, or that the scope of the disclosure or discovery be limited to certain matters;
(5) that discovery be conducted with no one present except persons designated by the court;
(6) that a deposition, after being sealed, be opened only by order of the court;
(7) that a trade secret or other confidential research, development, or commercial information not be revealed or be revealed only in a designated way; and
(8) that the parties simultaneously file specified documents or information enclosed in sealed envelopes to be opened as directed by the court.
If the motion for a protective order is denied in whole or in part, the court may, on such terms and conditions as are just, order that any party or other person provide or permit discovery. The provisions of Rule 37(a)(4) apply to the award of expenses incurred in relation to the motion.
(d) TIMING AND SEQUENCE OF DISCOVERY.
Except in categories of proceedings exempted from initial disclosure under Rule 26(a)(1)(E), or when authorized under these rules or by order or agreement of the parties, a party may not seek discovery from any source before the parties have conferred as required by Rule 26(f). Unless the court upon motion, for the convenience of parties and witnesses and in the interests of justice, orders otherwise, methods of discovery may be used in any sequence, and the fact that a party is conducting discovery, whether by deposition or otherwise, does not operate to delay any other party’s discovery.
(e) SUPPLEMENTATION OF DISCLOSURES AND RESPONSES.
A party who has made a disclosure under subdivision (a) or responded to a request for discovery with a disclosure or response is under a duty to supplement or correct the disclosure or response to include information thereafter acquired if ordered by the court or in the following circumstances:
(1) A party is under a duty to supplement at appropriate intervals its disclosures under subdivision (a) if the party learns that in some material respect the information disclosed is incomplete or incorrect and if the additional or corrective information has not otherwise been made known to the other parties during the discovery process or in writing. With respect to testimony of an expert from whom a report is required under subdivision (a)(2)(B) the duty extends both to information contained in the report and to information provided through a deposition of the expert, and any additions or other changes to this information shall be disclosed by the time the party’s disclosures under Rule 26(a)(3) are due.
(2) A party is under a duty seasonably to amend a prior response to an interrogatory, request for production, or request for admission if the party learns that the response is in some material respect incomplete or incorrect and if the additional or corrective information has not otherwise been made known to the other parties during the discovery process or in writing.
(f) CONFERENCE OF PARTIES; PLANNING FOR DISCOVERY.
Except in categories of proceedings exempted from initial disclosure under Rule 26(a)(1)(E) or when otherwise ordered, the parties must, as soon as practicable and in any event at least 21 days before a scheduling conference is held or a scheduling order is due under Rule 16(b), confer to consider the nature and basis of their claims and defenses and the possibilities for a prompt settlement or resolution of the case, to make or arrange for the disclosures required by Rule 26(a)(1), to discuss any issues relating to preserving discoverable information, and to develop a proposed discovery plan that indicates the parties’ views and proposals concerning:
(2) the subjects on which discovery may be needed, when discovery should be completed, and whether discovery should be conducted in phases or be limited to or focused upon particular issues;
(3) any issues relating to disclosure or discovery of electronically stored information, including the form or forms in which it should be produced;
(4) any issues relating to claims of privilege or of protection as trial-preparation material, including—if the parties agree on a procedure to assert such claims after production—whether to ask the court to include their agreement in an order;
(5) what changes should be made in the limitations on discovery imposed under these rules or by local rule, and what other limitations should be imposed; and
(6) any other orders that should be entered by the court under Rule 26(c) or under Rule 16(b) and (c). The attorneys of record and all unrepresented parties that have appeared in the case are jointly responsible for arranging the conference, for attempting in good faith to agree on the proposed discovery plan, and for submitting to the court within 14 days after the conference a written report outlining the plan. A court may order that the parties or attorneys attend the conference in person. If necessary to comply with its expedited schedule for Rule 16(b) conferences, a court may by local rule (i) require that the conference between the parties occur fewer than 21 days before the scheduling conference is held or a scheduling order is due under Rule 16(b), and (ii) require that the written report outlining the discovery plan be filed fewer than 14 days after the conference between the parties, or excuse the parties from submitting a written report and permit them to report orally on their discovery plan at the Rule 16(b) conference.
(g) SIGNING OF DISCLOSURES, DISCOVERY REQUESTS, RESPONSES, AND OBJECTIONS.
(1) Every disclosure made pursuant to subdivision (a)(1) or subdivision (a)(3) shall be signed by at least one attorney of record in the attorney’s individual name, whose address shall be stated. An unrepresented party shall sign the disclosure and state the party’s address. The signature of the attorney or party constitutes a certification that to the best of the signer’s knowledge, information, and belief, formed after a reasonable inquiry, the disclosure is complete and correct as of the time it is made.
(2) Every discovery request, response, or objection made by a party represented by an attorney shall be signed by at least one attorney of record in the attorney’s individual name, whose address shall be stated. An unrepresented party shall sign the request, response, or objection and state the party’s address. The signature of the attorney or party constitutes a certification that to the best of the signer’s knowledge, information, and belief, formed after a reasonable inquiry, the request, response, or objection is:
(A) consistent with these rules and warranted by existing law or a good faith argument for the extension, modification, or reversal of existing law;
(B) not interposed for any improper purpose, such as to harass or to cause unnecessary delay or needless increase in the cost of litigation; and
(C) not unreasonable or unduly burdensome or expensive, given the needs of the case, the discovery already had in the case, the amount in controversy, and the importance of the issues at stake in the litigation. If a request, response, or objection is not signed, it shall be stricken unless it is signed promptly after the omission is called to the attention of the party making the request, response, or objection, and a party shall not be obligated to take any action with respect to it until it is signed.
(3) If without substantial justification a certification is made in violation of the rule, the court, upon motion or upon its own initiative, shall impose upon the person who made the certification, the party on whose behalf the disclosure, request, response, or objection is made, or both, an appropriate sanction, which may include an order to pay the amount of the reasonable expenses incurred because of the violation, including a reasonable attorney’s fee.
Rule 37. Failure to Make Disclosures or Cooperate in Discovery; Sanctions
(a) MOTION FOR ORDER COMPELLING DISCLOSURE OR DISCOVERY. A party, upon reasonable notice to other parties and all persons affected thereby, may apply for an order compelling disclosure or discovery as follows:
(1) Appropriate Court.
An application for an order to a party shall be made to the court in which the action is pending. An application for an order to a person who is not a party shall be made to the court in the district where the discovery is being, or is to be, taken.
(A) If a party fails to make a disclosure required by Rule 26(a), any other party may move to compel disclosure and for appropriate sanctions. The motion must include a certification that the movant has in good faith conferred or attempted to confer with the party not making the disclosure in an effort to secure the disclosure without court action.
(B) If a deponent fails to answer a question propounded or submitted under Rules 30 or 31, or a corporation or other entity fails to make a designation under Rule 30(b)(6) or 31(a), or a party fails to answer an interrogatory submitted under Rule 33, or if a party, in response to a request for inspection submitted under Rule 34, fails to respond that inspection will be permitted as requested or fails to permit inspection as requested, the discovering party may move for an order compelling an answer, or a designation, or an order compelling inspection in accordance with the request. The motion must include a certification that the movant has in good faith conferred or attempted to confer with the person or party failing to make the discovery in an effort to secure the information or material without court action. When taking a deposition on oral examination, the proponent of the question may complete or adjourn the examination before applying for an order.
(3) Evasive or Incomplete Disclosure, Answer, or Response. For purposes of this subdivision an evasive or incomplete disclosure, answer, or response is to be treated as a failure to disclose, answer, or respond.
(4) Expenses and Sanctions.
(A) If the motion is granted or if the disclosure or requested discovery is provided after the motion was filed, the court shall, after affording an opportunity to be heard, require the party or deponent whose conduct necessitated the motion or the party or attorney advising such conduct or both of them to pay to the moving party the reasonable expenses incurred in making the motion, including attorney’s fees, unless the court finds that the motion was filed without the movant’s first making a good faith effort to obtain the disclosure or discovery without court action, or that the opposing party’s nondisclosure, response, or objection was substantially justified, or that other circumstances make an award of expenses unjust.
(B) If the motion is denied, the court may enter any protective order authorized under Rule 26(c) and shall, after affording an opportunity to be heard, require the moving party or the attorney filing the motion or both of them to pay to the party or deponent who opposed the motion the reasonable expenses incurred in opposing the motion, including attorney’s fees, unless the court finds that the making of the motion was substantially justified or that other circumstances make an award of expenses unjust.
(C) If the motion is granted in part and denied in part, the court may enter any protective order authorized under Rule 26(c) and may, after affording an opportunity to be heard, apportion the reasonable expenses incurred in relation to the motion among the parties and persons in a just manner.
(b) FAILURE TO COMPLY WITH ORDER.
(1) Sanctions by Court in District Where Deposition Is Taken. If a deponent fails to be sworn or to answer a question after being directed to do so by the court in the district in which the deposition is being taken, the failure may be considered a contempt of that court.
(2) Sanctions by Court in Which Action Is Pending. If a party or an officer, director, or managing agent of a party or a person designated under Rule 30(b)(6) or 31(a) to testify on behalf of a party fails to obey an order to provide or permit discovery, including an order made under subdivision (a) of this rule or Rule 35, or if a party fails to obey an order entered under Rule 26(f), the court in which the action is pending may make such orders in regard to the failure as are just, and among others the following:
(A) An order that the matters regarding which the order was made or any other designated facts shall be taken to be established for the purposes of the action in accordance with the claim of the party obtaining the order;
(B) An order refusing to allow the disobedient party to support or oppose designated claims or defenses, or prohibiting that party from introducing designated matters in evidence;
(C) An order striking out pleadings or parts thereof, or staying further proceedings until the order is obeyed, or dismissing the action or proceeding or any part thereof, or rendering a judgment by default against the disobedient party;
(D) In lieu of any of the foregoing orders or in addition thereto, an order treating as a contempt of court the failure to obey any orders except an order to submit to a physical or mental examination;
(E) Where a party has failed to comply with an order under Rule 35(a) requiring that party to produce another for examination, such orders as are listed in paragraphs
(A), (B), and (C) of this subdivision, unless the party failing to comply shows that that party is unable to produce such person for examination. In lieu of any of the foregoing orders or in addition thereto, the court shall require the party failing to obey the order or the attorney advising that party or both to pay the reasonable expenses, including attorney’s fees, caused by the failure, unless the court finds that the failure was substantially justified or that other circumstances make an award of expenses unjust.
(c) FAILURE TO DISCLOSE; FALSE OR MISLEADING DISCLOSURE; REFUSAL TO ADMIT.
(1) A party that without substantial justification fails to disclose information required by Rule 26(a) or 26(e)(1), or to amend a prior response to discovery as required by Rule 26(e)(2), is not, unless such failure is harmless, permitted to use as evidence at a trial, at a hearing, or on a motion any witness or information not so disclosed. In addition to or in lieu of this sanction, the court, on motion and after affording an opportunity to be heard, may impose other appropriate sanctions. In addition to requiring payment of reasonable expenses, including attorney’s fees, caused by the failure, these sanctions may include any of the actions authorized under Rule 37(b)(2)(A), (B), and (C) and may include informing the jury of the failure to make the disclosure.
(2) If a party fails to admit the genuineness of any document or the truth of any matter as requested under Rule 36, and if the party requesting the admissions thereafter proves the genuineness of the document or the truth of the matter, the requesting party may apply to the court for an order requiring the other party to pay the reasonable expenses incurred in making that proof, including reasonable attorney’s fees. The court shall make the order unless it finds that (A) the request was held objectionable pursuant to Rule 36(a), or (B) the admission sought was of no substantial importance, or (C) the party failing to admit had reasonable ground to believe that the party might prevail on the matter, or (D) there was other good reason for the failure to admit.
(d) FAILURE OF PARTY TO ATTEND AT OWN DEPOSITION OR SERVE ANSWERS TO INTERROGATORIES OR RESPOND TO REQUEST FOR INSPECTION.
If a party or an officer, director, or managing agent of a party or a person designated under Rule 30(b)(6) or 31(a) to testify on behalf of a party fails (1) to appear before the officer who is to take the deposition, after being served with a proper notice, or (2) to serve answers or objections to interrogatories submitted under Rule 33, after proper service of the interrogatories, or (3) to serve a written response to a request for inspection submitted under Rule 34, after proper service of the request, the court in which the action is pending on motion may make such orders in regard to the failure as are just, and among others it may take any action authorized under subparagraphs (A), (B), and (C) of subdivision (b)(2) of this rule. Any motion specifying a failure under clause (2) or (3) of this subdivision shall include a certification that the movant has in good faith conferred or attempted to confer with the party failing to answer or respond in an effort to obtain such answer or response without court action. In lieu of any order or in addition thereto, the court shall require the party failing to act or the attorney advising that party or both to pay the reasonable expenses, including attorney’s fees, caused by the failure unless the court finds that the failure was substantially justified or that other circumstances make an award of expenses unjust.
The failure to act described in this subdivision may not be excused on the ground that the discovery sought is objectionable unless the party failing to act has a pending motion for a protective order as provided by Rule 26(c).
[(e) SUBPOENA OF PERSON IN FOREIGN COUNTRY.] (Abrogated Apr. 29, 1980, eff. Aug. 1, 1980)
(f) ELECTRONICALLY STORED INFORMATION. Absent exceptional circumstances, a court may not impose sanctions under these rules on a party for failing to provide electronically stored information lost as a result of the routine, good-faith operation of an electronic information system.
(g) FAILURE TO PARTICIPATE IN THE FRAMING OF A DISCOVERY PLAN. If a party or a party’s attorney fails to participate in good faith in the development and submission of a proposed discovery plan as required by Rule 26(f), the court may, after opportunity for hearing, require such party or attorney to pay to any other party the reasonable expenses, including attorney’s fees, caused by the failure.