North Carolina Nonprofit Corporations Designation of Principal Office Address is the document outlining the physical location of the registered office of a nonprofit organization in the state of North Carolina. The principal office address must be the same as the physical address of the nonprofit’s headquarters, and the address must be located in the state of North Carolina. The address must be publicly available, and the nonprofit must keep the address up-to-date. The document must include the full street address, not just a post office box number. There are two types of North Carolina Nonprofit Corporations Designation of Principal Office Address, including the Articles of Incorporation and the Bylaws of the Corporation. The Articles of Incorporation are a document that outlines the structure of the corporation and the purposes the corporation is authorized to pursue. The Bylaws are a document that outlines the rules and regulations of the organization, including the designation of the principal office address.