30 ILCS 155/3

(30 ILCS 155/3) (from Ch. 61, par. 403) Sec. 3. Each individual taxpayer required to file a return pursuant to the Illinois Income Tax Act desiring to contribute to The Illinois Wildlife Preservation Fund may do so by stating the amount of such contribution (not less than $1) on such return. This Section shall not apply to an amended return. (Source: P.A. 88-130.)