Abstract
This paper is divided in 3 parts, Part I is about the implementation process of the UN Con-vention on contracts for the International Sale of Goods(CISG) in Norwegian legislation, the Secord Part is dedicated to the analysis of art.8 of the Convention , its interpretation according to international rules and the comparisons of the interpretative rules between several legislative systems , in order to create a picture of how challenging or not the appli-cation of this Article may be for the CISG member states, and in the end part III is illus-trating the comparison of article 8 and the corresponding § 89 of Norwegian Sales Act and the use of Unidroit principles for purpose of its interpretation