CLEAN : Dutch 'Brexit Monster' warns of port problems

The video discusses the measures taken to communicate effectively and reform the ferry supply chain in the Netherlands. It highlights the impact of Brexit on Dutch producers and manufacturers, emphasizing the preparedness of ports like Rotterdam for upcoming changes. Despite initial challenges, such as traffic jams and disappointed truckers, the ports are expected to be fully operational within weeks. The video stresses the importance of having all custom formalities in place by January 1st for smooth trade operations with the UK.

What is necessary for customs operations to function smoothly from January 1st?

What is the significance of having customs formalities in place?