Canada Customs Invoice. Form CI1, Canada Customs Invoice, is a CBSA document showing all the data elements required at time of release. All commercial shipments entering Canada with a value of CAN$1,600 must have a Canada Customs Invoice, a commercial invoice containing all the data elements of a Canada Customs Invoice, or a combination of the two. If a shipment is less than CAN$1,600, a commercial invoice will be accepted, as long as all required information is present. Canada-Chile Free Trade Agreement (CCFTA) - An agreement implemented on July 5, 1997, to phase out tariffs over a six-year period for certain goods traded between the two countries. The applicable tariff treatment is the Chile Tariff (CT).