Code of Federal Regulations Title 29. Labor § 29.18.53 Supplementing disclosures and responses

(a) In general. A party who has made a disclosure under § 18.50(c)—or who has responded to an interrogatory, request for production, or request for admission—must supplement or correct its disclosure or response:

(b) Expert witness. For an expert whose report must be disclosed under § 18.50(c)(2)(ii), 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 by the time the party's prehearing disclosures under § 18.50(c)(3) are due.