N.C. Gen. Stat. § 97-71
The advisory medical committee shall file its report in triplicate with the Industrial Commission, which shall send one copy thereof to the claimant and one copy to the employer by registered mail. Unless within 30 days from receipt of the copy of said report the claimant and/or employer shall request the Industrial Commission in writing to set the case for further hearing for the purpose of examining and/or cross-examining the members of the advisory medical committee respecting the report of said committee, said report shall become a part of the record of the case and shall be accepted by the Industrial Commission as expert medical testimony to be considered as such in connection with all the evidence in the case in arriving at its decision.
N.C. Gen. Stat. § 97-71