The conditions for the United Kingdom's withdrawal from the EU are not yet known at the finishing of this paper. But it can already be known that it will have merit and a significant impact on both parties. At present, this process can be completed in a number of ways, and it is possible to develop more alternatives to exit conditions. At the same time, it is important to see that the transformation of the rule that emerges from the potential of the EU single market, i.e. the abolition of the freely negotiable border raises a number of substantive issues and highlights important problems. In this process, substantial problems will mainly arise in the flow of products. In particular, products that require special attention, for example, are in a special position, e.g. food and agricultural products should be prepared for changes in regulations. It is therefore necessary to collect and describe changes in the physical, technical and administrative rules affecting trade policy changes. The purpose of this study is to summarize the impacts of agri-food commodity flows and to formulate conclusions along these lines.