The purpose of the CISG is to provide a modern, uniform and fair regime for contracts for the international sale of goods. New York law includes an almost inexhaustible set of rules and precedents covering a wide spectrum of business transactions.Fully elaborated commercial contracts typically identify the governing law and specify the forum that would hear any dispute. As a treaty, the CISG is incorporated into United States federal law and, thus, is a part of New York law. Why you need a written contract. Form agreement for the sale of goods under Article 2 of the New York Uniform Commercial Code (UCC), drafted in favor of the seller. The contract states that New York law applies. 2. There are significant bid opportunities for businesses seeking growth through government sales in the US and around the world.