The 1930 Imperial Conference was the seventh Imperial Conference bringing together the Prime Ministers of the dominions of the British Empire. It was held in London. The conference was notable for producing the Statute of Westminster, which established legislative equality for the self-governing Dominions of the British Empire with the United Kingdom, thereby marking the effective legislative independence of these countries, either immediately or upon ratification. Economic relations within the British Empire was also a key topic with proposals for a system of Imperial preference - empire-wide trade barriers against foreign (i.e. non-empire) goods. These proposals were further discussed at the British Empire Economic Conference in 1932.