N.C. Gen. Stat. § 58-11-5: Contracts must accord with charter and bylaws.

Every policy or certificate or renewal receipt issued to a resident of this State by any corporation, association, or order transacting therein the business of insurance upon the assessment plan must be in accord with the provisions of the charter and bylaws of such corporation, association, or order, as filed with the Commissioner. It is unlawful for any such domestic or foreign insurance company or fraternal order to transact or offer to transact any business not authorized by the provisions of its charter and terms of its bylaws, or, through an agent or otherwise, to offer or issue any policy, renewal certificate, or other contract whose terms are not in clear accord with the powers, terms, and stipulations of its charter and bylaws. (1899, c. 54, s. 84; 1903, c. 438, s. 9; Rev., s. 4791; C.S., s. 6357; 1991, c. 720, s. 4.)