N.C. Gen. Stat. § 1-569.20

(1) On motion to an arbitrator by a party to an arbitration proceeding, the arbitrator may modify or correct an award: Upon a ground stated in G.S. 1-569.24(a)(1) or (a)(3);

(2) Because the arbitrator had not made a final and definite award upon a claim submitted by the parties to the arbitration proceeding; or

(3) To clarify the award.

(4) A motion under subsection (a) of this section shall be made and notice given to all parties within 20 days after the moving party receives notice of the award.

(5) A party to the arbitration proceeding shall give notice of any objection to the motion within 10 days after receipt of the notice.

(6) If a motion to the court is pending under G.S. 1-569.22, 1-569.23, or 1-569.24, the court may submit the claim to the arbitrator to consider whether to modify or correct the award: Upon a ground stated in G.S. 1-569.24(a)(1) or (a)(3);

(7) Because the arbitrator had not made a final and definite award upon a claim submitted by the parties to the arbitration proceeding; or

(8) To clarify the award.

(9) An award modified or corrected pursuant to this section is subject to G.S. 1-569.19(a), 1-569.22, 1-569.23, and 1-569.24.