Illinois General Assembly - Illinois Compiled Statutes

Updating the database of the Illinois Compiled Statutes (ILCS) is an ongoing process. Recent laws may not yet be included in the ILCS database, but they are found on this site as Public Acts soon after they become law. For information concerning the relationship between statutes and Public Acts, refer to the Guide.

Because the statute database is maintained primarily for legislative drafting purposes, statutory changes are sometimes included in the statute database before they take effect. If the source note at the end of a Section of the statutes includes a Public Act that has not yet taken effect, the version of the law that is currently in effect may have already been removed from the database and you should refer to that Public Act to see the changes made to the current law.

810 ILCS 5/2-202

(810 ILCS 5/2-202) (from Ch. 26, par. 2-202)

Sec. 2-202. Final written expression: parol or extrinsic evidence.

Terms with respect to which the confirmatory memoranda of the parties
agree or which are otherwise set forth in a writing intended by the parties
as a final expression of their agreement with respect to such terms as are
included therein may not be contradicted by evidence of any prior agreement
or of a contemporaneous oral agreement but may be explained or supplemented

(a) by course of performance, course of dealing, or

usage of trade (Section 1-303); and

(b) by evidence of consistent additional terms unless

the court finds the writing to have been intended also as a complete and exclusive statement of the terms of the agreement.

(Source: P.A. 95-895, eff. 1-1-09.)