Iowa R. Civ. P. 1.508

1.508(1) Expert who is expected to be called as a witness. In addition to the disclosures

and discovery provided pursuant to rules 1.500(2) and 1.516, discovery of facts known, mental

impressions, and opinions held by an expert whom the other party expects to call as a witness at

trial, otherwise discoverable under the provisions of rule 1.503(1) and acquired or developed in

anticipation of litigation or for trial, may be obtained as follows:

a. Deposition of an expert who may testify. A party may depose any person who has been identified

as an expert whose opinions may be presented at trial. If rule 1.500(2)(b) requires a report from the

expert, the deposition may be conducted only after the report is provided.

b. Discovery by other means. Subject to rules 1.508(1)(d) and (e), a party may also obtain

discovery of documents and tangible things including all tangible reports, physical models,

compilations of data, and other material prepared by an expert or for an expert in anticipation of the

expert’s trial and deposition testimony. The disclosure of material prepared by an expert used for

consultation is required even if it was prepared in anticipation of litigation or for trial when it forms a

basis, either in whole or in part, of the opinions of an expert who is expected to be called as a witness.

c. Tangible form. Subject to rules 1.508(1)(d) and (e), if the discoverable factual observations,

tests, supporting data, calculations, photographs, or opinions of an expert who will be called as a

witness have not been recorded and reduced to tangible form, the court may order these matters be

reduced to tangible form and produced within a reasonable time before the date of trial.

d. Trial preparation protection for draft reports or interrogatory answers. Rule 1.503(3) protects

drafts of any report or disclosure required under rule 1.500(2), regardless of the form in which the

draft is recorded.

e. Trial preparation protection for communications between a party’s attorney and expert

witnesses. Rule 1.503(3) protects communications between the party’s attorney and any witness

required to provide a report under rule 1.500(2)(b), regardless of the form of the communications,

except to the extent that the communications:

(1) Relate to compensation for the expert’s study or testimony.

(2) Identify facts or data that the party’s attorney provided and that the expert considered in

forming the opinions to be expressed.

(3) Identify assumptions that the party’s attorney provided and that the expert relied on in forming

the opinions to be expressed.

1.508(2) Expert who is not expected to be called as a witness. The disclosure of the same

information concerning an expert used for consultation and who is not expected to be called as a

witness at trial is required if the expert’s work product forms a basis, either in whole or in part, of

the opinions of an expert who is expected to be called as a witness. Otherwise, a party may discover

the identity of and facts known, or mental impressions and 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 1.516 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.

1.508(3) Duty to supplement discovery as to experts. For an expert whose report must be disclosed

under rule 1.500(2)(b), the party’s duty to supplement extends both to information included in the

report and to information given during the expert’s deposition. Any additions or changes to this

information must be disclosed no later than 30 days before trial. Failure to disclose or supplement

the identity of an expert witness or the information described in rule 1.500(2) is subject to sanctions

under rule 1.517(3)(a).

1.508(4) Expert testimony at trial. The expert’s direct testimony at trial may not be inconsistent

with or go beyond the fair scope of the expert’s disclosures, report, deposition testimony, or

supplement thereto.

1.508(5) Expert fees during discovery. Unless manifest injustice would result, the court shall

require that the party seeking discovery pay the expert a reasonable fee for time spent in responding to

discovery under rules 1.508(1) and 1.508(2). With respect to discovery obtained under rule 1.508(1),

the court may require, and with respect to discovery obtained under rule 1.508(2), 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. Any fee

which the court requires to be paid shall not exceed the expert’s customary hourly or daily fee; and,

in connection with a party’s deposition of another party’s expert, shall include the time reasonably

and necessarily spent in connection with such deposition, including time spent in travel to and from

the deposition, but excluding time spent in preparation.

1.508(6) Effective date. Rules 1.508(1)(a), 1.508(d), 1.508(1)(e), and 1.508(3) apply only to

actions commenced on or after January 1, 2015, provided that the court may in any case direct the

parties to comply with all or part of the rules as part of a pretrial order.