Final expression: Parol or extrinsic evidence.
Nev. Rev. Stat. § 104.2202
in effectTerms with respect to which the confirmatory memoranda of the parties agree or which are otherwise set forth in a record 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:
1. By course of performance, course of dealing or usage of trade ( NRS 104.1303 ); and
2. By evidence of consistent additional terms unless the court finds the record to have been intended also as a complete and exclusive statement of the terms of the agreement.
Source: NV Statutes (Official Site)URL: https://www.leg.state.nv.us/nrs/NRS-104.htmlFetched: 10/4/2026