With crossborder agreements, international contract law comes into play. Consult an attorney before entering into international contracts.This book contains information on exporting that was current as of the date of publication. Both domestic and foreign goods can be placed in the Zone without formal customs entry payment of duties or government excise taxes. A business using the Zone. The purpose of the CISG is to provide a modern, uniform and fair regime for contracts for the international sale of goods. Invitation for Bid (IFB). Used primarily for purchasing goods, as price is the main factor. Apply to Foreign Exchange Trader, Sales Representative, Specialist and more! The office and the institutions may enter contracts for this purpose.