N.C. Gen. Stat. § 89E-16

This Board shall cause to have prepared and shall adopt a code of professional conduct which shall be made known in writing to every licensee and applicant for licensing under this Chapter and which shall be published by the Board. Such publication shall constitute due notice to all licensees. The Board may revise and amend this code of ethics from time to time after due notice and opportunity for hearing to all licensed members and the public for comment before adoption of the revision or amendments.