N.C. Gen. Stat. § 93D-11
Every person licensed as a hearing aid specialist shall pay to the Board an annual license renewal fee in an amount set by the Board, not to exceed two hundred fifty dollars ($250.00). The payment shall be made prior to the first day of April in each year. In case of default in payment the license shall expire 30 days after notice by the secretary-treasurer to the last known address of the licensee by registered mail, certified mail, or in a manner provided by G.S. 1A-1, Rule 4(j)(1)d. The Board may reinstate an expired license upon the showing of good cause for late payment of fees, upon payment of said fees within 60 days after expiration of the license, and upon the further payment of a late penalty of twenty-five dollars ($25.00). After 60 days after the expiration date, the Board may reinstate the license for good cause shown upon application for reinstatement and payment of a late penalty of fifty dollars ($50.00) and the renewal fee. The Board may require all licensees to successfully attend and complete a course or courses of occupational instruction funded, conducted or approved or sponsored by the Board on an annual basis as a condition to any license renewal and evidence of satisfactory attendance and completion of any such course or courses shall be provided the Board by the licensee.
N.C. Gen. Stat. § 93D-11