Duties of Customs

The question of rules of origin, of course, is the other factor in the debate about the customs union, because it is not just a question of tariffs; it is about what proportion of these products originates from within the United Kingdom and what proportion relates to components or other parts that may have come from the inventory or warehouse of the whole European Union. Currently, under just-in-time arrangements for warehousing, a car manufacturer located in the UK can avoid the need to stack up expensive inventory. It can assume that goods and parts are able to be transmitted within a matter of hours or days, which is what we risk losing if we end up with such tariffs and impediments at our borders.