If the European Union and the United Kingdom fail to negotiate a new trade agreement, there is a risk of severe traffic congestion on the British side at the border.
Minister Michael Gove of cabinet affairs warns against this in a leaked letter that Bloomberg news agency has seen.
The minister fears that British entrepreneurs who trade with EU countries will not be prepared for border checks after January 1, 2021. In the worst case, 70 percent of all truck drivers who want to go to the EU is not prepared for border checks.
This could reduce the flow of goods transported between Dover and Calais by 80 percent. The crossing at the Pas de Calais, under which the Channel Tunnel runs, is considered a vital artery for British trade.
Negotiators for the United Kingdom and the European Union have so far made little progress in talks about a new trade agreement. After the withdrawal of the United Kingdom at the end of January, a transition phase started until the end of this year.
If there is no new agreement on the future relationship between the EU and the UK before the end of this year, reciprocal trade will fall back to the World Trade Organization (WTO) rules. This mostly amounts to a no-deal Brexit, resulting in import duties for many goods.