Sources of data include: all publicly available data; WTO tariff schedules, notifications, modifications and rectifications; UNCTAD TRAINS; UNSD COMTRADE; FAOstat; Eurostat; and various national trade data where available. The database currently contains data for 50 countries with more to come. Access is free but users must register. The database is the result of a cooperative effort by: Agriculture and Agri-Food Canada; U.S. Dept. of Agriculture, Economic Research Service; European Commission, Agriculture Directorate-General; Food and Agriculture Organisation of the United Nations; Organisation for Economic Co-operation and Development; The World Bank; and the United Nations Conference on Trade and Development.