215 ILCS 110/20
(h) Such other provisions not inconsistent with law as may be determined by the Director to be necessary or advisable.
Each such corporation shall have and continuously maintain in this state a registered office which may be, but need not be, the same as its place of business, and a registered agent, which agent may be any person having a business office in this state. The name and address of the initial registered agent and the initial registered office of the corporation shall be set forth in its charter.
(from Ch. 32, par. 690.20)
(Source: Laws 1965, p. 2179.)