§ 193.5. Amending or Supplementing Responses to Written Discovery
193.5. Amending or Supplementing Responses to Written Discovery
(a) Duty to Amend or Supplement. If a party learns that the party's response to written discovery was incomplete or incorrect when made, or, although complete and correct when made, is no longer complete and correct, the party must amend or supplement the response:
(1) to the extent that the written discovery sought the identification of persons with knowledge of relevant facts, trial witnesses, or expert witnesses, and
(2) to the extent that the written discovery sought other information, unless the additional or corrective information has been made known to the other parties in writing, on the record at a deposition, or through other discovery responses.
(b) Time and Form of Amended or Supplemental Response. An amended or supplemental response must be made reasonably promptly after the party discovers the necessity for such a response. Except as otherwise provided by these rules, it is presumed that an amended or supplemental response made less than 30 days before trial was not made reasonably promptly. An amended or supplemental response must be in the same form as the initial response and must be verified by the party if the original response was required to be verified by the party, but the failure to comply with this requirement does not make the amended or supplemental response untimely unless the party making the response refuses to correct the defect within a reasonable time after it is pointed out.