Consensus is emerging within the Parliamentary Labour Party, however, around Jeremy’s proposal for an EU-wide customs union. This would include a customs-union code and a common external tariff. But this proposal needs closer scrutiny.
If this position were to be adopted, the UK would not be able to develop an independent trade policy after Brexit, as doing so would be illegal under the Treaty of Rome. The UK would not have taken back control of its trade. Our capacity to trade would be regulated and controlled by an authority over which we would have no control, influence or rights.