N.C. Gen. Stat. § 62-36
The Commission may require any public utility to file annual reports in such form and of such content as the Commission may require and special reports concerning any matter about which the Commission is authorized to inquire or to keep informed, or which it is required to enforce. All reports shall be under oath when required by the Commission. The Commission may issue an order, without notice or hearing, canceling or suspending any certificate of convenience and necessity or any certificate of authority 30 days after the date of service of the order for failing to file the required annual report at the time it was due. In the event the report is filed during the 30-day period, the order of cancellation or suspension shall be null and void.
N.C. Gen. Stat. § 62-36