Article 22: Rules for County Court Expedited Civil Actions · Last amended January 1, 2022 · Last verified July 22, 2026
In one sentence§ 6-2206 requires a party to promptly correct or complete an earlier disclosure, interrogatory answer, or discovery response once it learns the information was wrong or incomplete, including anything an expert added during a deposition.
(A)In General. A party that has made a required disclosure or that has responded to an interrogatory, request for production, or request for admission must supplement or correct its disclosure or response:
(1)in a timely manner if the party learns that in some material respect the disclosure or response 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; or
(2)as ordered by the court.
(B)Expert Witnesses. For an expert witness, the party’s duty to supplement extends both to information included in the disclosure or report and, if the expert is deposed, to information given during the expert’s deposition.
Amendment History
§ 6-2206 adopted December 8, 2021, effective January 1, 2022.
Plain-English Summary
§ 6-2206 keeps the disclosures required elsewhere in Article 22 accurate as a case develops. Anyone who has made a required disclosure, or answered an interrogatory, request for production, or request for admission, has to supplement or correct it once it learns, in some material way, that what it provided is incomplete or wrong, unless the missing or corrected information has already reached the other parties through the discovery process or in writing some other way. A court order can also trigger the same duty.
Expert witnesses get a specific extension of that duty. The obligation to supplement covers not just the original expert disclosure or report, but also anything the expert adds during a deposition, so a side cannot treat deposition testimony as the final word if it later turns out something material still needs correcting.
Frequently Asked Questions
Do I have to correct a disclosure if I later learn it was incomplete?
Yes. A party must supplement or correct a disclosure or response in a timely manner once it learns the information is materially incomplete or incorrect.
Does the duty to supplement apply to interrogatory answers, or just initial disclosures?
It applies to any required disclosure and to responses to interrogatories, requests for production, and requests for admission.
Do I need to supplement information the other side already knows about?
No. The duty does not apply if the additional or corrective information has already been made known to the other parties during discovery or in writing.
Does an expert’s deposition testimony create its own supplementation duty?
Yes. For an expert witness, the duty to supplement extends to information given during that expert’s deposition, not just the original disclosure or report.
Can a court order a party to supplement its disclosures?
Yes. A party must supplement or correct its disclosure or response as ordered by the court, in addition to the timeliness requirement.
Source & verification. Section text and amendment history are
reproduced verbatim from the Nebraska Judicial Branch, adopted by the
Supreme Court of Nebraska. Last verified July 22, 2026. ·
Official source
Also known as:duty to supplement disclosures nebraskacorrecting discovery responses expedited action6-2206 nebraska rulesupplementing expert disclosure after depositionincomplete discovery response nebraska civilupdating initial disclosures county court