§18.53. Supplementing disclosures and responses. — Inbound Citations

(c) Discovery may be conducted as provided in the rules of practice and procedure at 29 CFR 18.50 through 18.65.

(d) This section does not apply to disclosures and discovery requests, responses, objections, and motions under §§ 18.50 through 18.65.

(6) Controlling and scheduling discovery, including orders affecting disclosures and discovery under §§ 18.50 through 18.65;

(iv) The parties must supplement these disclosures when required under § 18.53.

(c) If a party fails to provide information or identify a witness as required by §§ 18.50(c) and 18.53, or if a party fails to admit what is requested under § 18.63(a) and the requesting party later proves a document to be genuine or the matter true, the party is not allowed to use that information or witness to supply evidence on a motion or at a hearing, unless the failure was substantially justified or is harmless. In addition to or instead of this sanction, the judge, on motion and after giving an opportunity to be heard may impose other appropriate sanctions, including any of the orders listed in paragraph (b)(1) of this section.