Conn. Gen. Stat. § 33-609: Forms. Mailing address.

(a) The Secretary of the State may prescribe and furnish on request forms for: (1) An application for a certificate of existence; (2) a foreign corporation's application for a certificate of authority to transact business in this state; (3) a foreign corporation's application for a certificate of withdrawal; and (4) the annual report. If the Secretary of the State so requires, use of these forms is mandatory.

(b) The Secretary of the State may prescribe and furnish on request forms for other documents required or permitted to be filed by sections 33-600 to 33-998, inclusive, but their use is not mandatory.

(c) If a corporation or a foreign corporation so requests in writing, the Secretary of the State shall mail to the address designated in such request, and to no other address of the corporation, all matter required or permitted by this chapter to be mailed to such corporation or foreign corporation by the Secretary of the State.