The area of freight haulage is likely to experience some of the most far reaching changes under Brexit.

In particular, long established practices of cabotage, which have allowed a large degree of flexibility in the road and air transport systems, will need to be adjusted to take account of the regulatory environment. Supply Chain is strongly recommended to understand the effects of potential changes and put contingency plans into place.

Use the New Computerised Transit System

The attached gives an updated view of the New Computerised Transit System in the light of current developments under Brexit.
https://www.gov.uk/guidance/using-the-new-computerised-transit-system-to-move-goods-across-the-eu-and-efta-countries