(a) Every domestic corporation or authorized foreign corporation may designate a registered agent in this state upon whom process against such corporation may be served. The agent shall be a natural person who is a resident of or has a business address in this state or a domestic corporation or foreign corporation of any kind formed, or authorized to do business in this state, under this chapter or under any other statute of this state.

(b) Any such designation of a registered agent may be made, revoked or changed as provided in this chapter.

(c) A registered agent may resign as such agent. A certificate, entitled "Certificate of resignation of registered agent of ........... (name of designating corporation) under section 305 of the Not-for-Profit Corporation Law", shall be signed by him and delivered to the department of state. It shall set forth:

(1) That he resigns as registered agent for the designating corporation.

(2) The date the certificate of incorporation or the application for authority of the designating corporation was filed by the department of state.

(3) That he has sent a copy of the certificate of resignation by registered mail to the designating corporation at the post-office address on file in the department of state specified for the mailing of process or if such address is the address of the registered agent, then to the office of the designating corporation in the jurisdiction of its formation or incorporation.

(d) The designation of a registered agent shall terminate thirty days after the filing by the department of state of a certificate of resignation or a certificate containing a revocation or change of the designation, whichever is filed earlier. A certificate designating a new registered agent may be delivered to the department of state by the corporation within the thirty days or thereafter.