§ 195.6. Amendment and Supplementation
195.6. Amendment and Supplementation
A party's duty to amend and supplement written discovery regarding a testifying expert is governed by Rule 193.5. If an expert witness is retained by, employed by, or otherwise under the control of a party, that party must also amend or supplement any deposition testimony or written report by the expert, but only with regard to the expert's mental impressions or opinions and the basis for them.