Moving goods under Transit Procedure via the UK landbridge: Ireland â Great Britain - Netherlands Background A range of new steps must be completed in order to move goods under the transit procedure from 1 January 2021. Depending on the model used by operators to manage the transit (e.g. in-house or via a customs agent), there is flexibility as to who completes a number of steps. It is therefore vital that all actors in the transit chain (e.g. traders, logistics companies, customs agents, hauliers etc.) understand and agree in advance who is responsible for each of the steps along the route. Failing to clarify this will disrupt your trade and lead to possibly severe delays including not being given permission to enter Ports or board ships.