The United Nations Convention on Contracts for the International Sale of Goods (CISG) entered into force on January 1, 1988 for the 11 contracting parties. This 80-minute webinar tells you why.You (or the purchaser or transferee) must complete Form CBS-1, Notice of Sale, Purchase, or Transfer of Business Assets. APPLICATION: Please complete and submit two copies of form BCA 13.15 to apply for an Authority to Transact Business in Illinois. "Contract for sale" includes both a present sale of goods and a contract to sell goods at a future time. Inspecting the local law of wherever the goods involved in the contract might be shipped. Insightful Journeys: Real-Life Business Sale Stories in Illinois. Success Stories from the Illinois Market. Section II introduces the current technology of smart contracts and how it can be used for international sales agreements. Sales tax nexus can linger even after a retailer ceases the activities that caused it to be "engaged in business" in the state.