N.C. Gen. Stat. § 15A-1054

(1) Whether or not a grant of immunity is conferred under this Article, a prosecutor, when the interest of justice requires, may exercise his discretion not to try any suspect for offenses believed to have been committed within the prosecutorial district as defined in G.S. 7A-60, to agree to charge reductions, or to agree to recommend sentence concessions, upon the understanding or agreement that the suspect will provide truthful testimony in one or more criminal proceedings.

(2) Recommendations as to sentence concessions must be made to the trial judge by the prosecutor in accordance with the provisions of Article 58 of this Chapter, Procedure[s] Relating to Guilty Pleas in Superior Court.

(3) When a prosecutor enters into any arrangement authorized by this section, written notice fully disclosing the terms of the arrangement must be provided to defense counsel, or to the defendant if not represented by counsel, against whom such testimony is to be offered, a reasonable time prior to any proceeding in which the person with whom the arrangement is made is expected to testify. Upon motion of the defendant or his counsel on grounds of surprise or for other good cause or when the interests of justice require, the court must grant a recess.