8 Del. C. § 131: Registered office in State.

(a) Every corporation shall have and maintain in this State a registered office which may, but need not be, a place of the corporation’s business in this State.

(b) As used in this title, “registered office” means the address of the registered agent located in this State being appointed to accept service of process and otherwise perform the duties of a registered agent.

(c) As contained in any certificate of incorporation or other document filed with the Secretary of State under this chapter, the address of a registered office shall include the street, number, city, county and postal code.