Where, in this Act, reference is made to a section by its number and no act is specified, the reference is to the correspondingly numbered section of this Act. Where reference is made to an article by its number and no act is specified, the reference is to the correspondingly numbered article of this Act. Where reference is made to "this Article" and no act is specified, the reference is to the article of this Act in which the reference appears. If any section or article of this Act to which reference is so made is hereafter amended, the reference shall thereafter be treated and considered as a reference to the section or article as so amended.
70 ILCS 605/1-3