Britain wants to create a temporary customs union with the European Union from March 2019 for a transitional period after Brexit.
The interim agreement would include the current arrangements of trade in goods between the UK and the EU, but London intends to start trade negotiations with non-EU countries.
At the end of the transition period, either a new customs border with the EU will be established, or an agreement on the absence of a border will be concluded between the parties.
Earlier, consulting company Oxera presented the forecast of the consequences of the introduction of border customs control after Britain's withdrawal form the EU. The cost of inspecting cargo will be £1 billion per year, and consumers in both the European Union and the UK are going to be seriously suffered by delay of goods delivery.