Del. Code tit. 10 § 5711
On written application of a party to the arbitrators within 20 days after delivery of the award to the applicant, or, if an application to the Court is pending under § 5713, 5714 or 5715, on submission to the arbitrators by the Court under such conditions as the Court may order, the arbitrators may modify or correct the award upon the grounds stated in subdivisions (1) and (3) of subsection (a) of § 5715, or for the purpose of clarifying the award. Written notice of such application to the arbitrators shall be given forthwith to the opposing party, delivered personally or by registered or certified mail, return receipt requested, stating that the party must serve his or her objections thereto, if any, within 10 days from the date of the notice. The arbitrators shall dispose of any application made under this section in writing, signed and acknowledged by them, within 30 days after either written objection to modification has been served on them or the time for serving such objection has expired, whichever is earlier. The parties may in writing extend the time for such disposition either before or after its expiration. The award so modified or corrected by the arbitrators is subject to the provisions of §§ 5713, 5714 and 5715.
10 Del. C. § 5711