The Agreement on Agriculture (AoA) is a product of the Uruguay Round of the General Agreement on Tariffs and Trade (GATT) negotiations (1986-94). The AoA provides the rules governing international agricultural trade and, by extension, production. It bans the use of border measures other than tariffs, and it puts tariffs on a schedule of phased reduction. Under the AoA, domestic support programs are categorized as either acceptable or unacceptable, with the latter also scheduled for reduction, and export subsidies, while effectively legalized by the agreement, have also been disciplined and slated for reduction. The content of the AoA reflects the shared agenda of the U.S. negotiating team and the non-European Union (EU) grain exporting countries (known as the Cairns Group) to push for as much liberalization of agriculture as possible.