805 ILCS 125/6
Wherever in this Act the words "special charter" are used they shall be construed to mean the special law of this state by virtue of which the corporation, association or society exists, irrespective of whether or not in such special law such charter is referred to as the charter or special charter of the corporation, association or society.
(from Ch. 32, par. 199.4)
(Source: Laws 1941, vol. 1, p. 460.)