75 ILCS 60/3.1
A corporation organized under this Act may amend its articles of incorporation, from time to time, in any respect which is consistent with this Act. An amendment shall be adopted at a meeting of the board of trustees, managers or directors upon receiving the vote of a majority of the trustees, managers or directors in office. Any number of amendments may be submitted and voted upon at any one meeting.
The articles of amendment shall be executed in duplicate by the corporation by its secretary, or assistant secretary and by one other officer, verified by either of the officers executing such statement, and shall set forth:
Duplicate originals of the articles of amendment shall be delivered to the Secretary of State, who shall file one such duplicate original in his office, and issuearticlesof amendment to which he shall affix the other duplicate original. Such articles of amendment, with the duplicate original of the articles of amendment affixed thereto by the Secretary of State, shall be returned to the corporation or its representative and shall thereupon be filed by the corporation for record in the office of the recorder where the articles of incorporation are recorded.
Upon the issuance of the articlescertificate of amendment by the Secretary of State, the amendment shall become effective and the articles of incorporation shall be deemed to be amended accordingly. No amendment shall affect any existing cause of action in favor of or against the corporation, or any pending action to which such corporation shall be a party.
75 ILCS 60/3.1