(805 ILCS 5/7.10) (from Ch. 32, par. 7.10)
    Sec. 7.10. Informal action by shareholders. (a) Unless otherwise provided in the articles of incorporation or Section 12.10 of this Act, any action required by this Act to be taken at any annual or special meeting of the shareholders of a corporation, or any other action which may be taken at a meeting of the shareholders, may be taken without a meeting and without a vote, if a consent in writing, setting forth the action so taken, shall be signed (i) by the holders of outstanding shares having not less than the minimum number of votes that would be necessary to authorize or take such action at a meeting at which all shares entitled to vote thereon were present and voting or (ii) by all of the shareholders entitled to vote with respect to the subject matter thereof. If such consent is signed by less than all of the shareholders entitled to vote, then such consent shall become effective only if at least 5 days prior to the execution of the consent a notice in writing is delivered to all the shareholders entitled to vote with respect to the subject matter thereof and, after the effective date of the consent, prompt notice of the taking of the corporation action without a meeting by less than unanimous written consent shall be delivered in writing to those shareholders who have not consented in writing.
    (b) In the event that the action which is consented to is such as would have required the filing of a certificate under any other Section of this Act if such action had been voted on by the shareholders at a meeting thereof, the certificate filed under such other Section shall state, in lieu of any statement required by such Section concerning any vote of shareholders, that written consent has been delivered in accordance with the provisions of this Section and that written notice has been delivered as provided in this Section.
(Source: P.A. 84-924.)