70 ILCS 1810/21

The Board shall have power to pass all ordinances and make all rules and regulations proper or necessary, and to carry into effect the powers granted to the District, with such fines or penalties as may be deemed proper. All fines and penalties shall be imposed by ordinances, which shall be published in a newspaper of general circulation published in the area embraced by the District. No such ordinance shall take effect until ten days after its publication.