Port is made in the Douro Valley in the northern provinces of Portugal. Wines which are similar to the Portuguese product called "port" are made in several countries around the world. The biggest producers are Australia, South Africa, India, Canada and the United States. However, under European Union guidelines, only the product from Portugal may be labelled as "Port". In the United States, Federal law mandates that the Portuguese-made product be labeled "Porto" or "Vinho do Porto".