LAST week, the EU Withdrawal Bill passed its final stage in Parliament and is now, officially, the EU (Withdrawal) Act. Two years after voting leave and 15 months after triggering the Article 50 process for actual withdrawal from the EU, we have now got to the point where we know we are leaving.

What we don’t know is what our relationship will be with the EU in the future. Will manufacturers and farmers pay tariffs? Can we sell financial and other services into the EU? What will happen on the Northern Ireland Border? What will our security arrangements be with the EU? Which dispute arbitration system will we use when we fall out with the EU? How will our customs arrangements work? Will we part of the aviation regulation system, allowing our ‘planes to fly? What regulations over the car industry will we adopt? Are we to be cut out of the new Galileo satellite navigation system that we have invested into? Will workers in pan European businesses be able to move freely between the UK and the EU? What will our immigration system look like? Will farmers get subsidies, ensuring food security? Will we adopt new food standards? How will we type test rare disease drugs? Will a touring show be allowed to take performers and road crew to the EU? If one of us is injured or falls ill when on holiday in the EU, will we get medical help as we do now? Will we need to buy a visa to holiday in Magaluf?

This presents a microscopic dot on the enormous list of uncertainties that stands in front of us. Absolutely everything us up for negotiation and we have just nine months to get ready for this, to cover everything that has affected our lives for the last 40 years. The task is, in its truest sense, Herculean.

So, it is not surprising that businesses – Airbus, BMW – have started to wail in frustration at the stunning lack of progress. All businesses must plan for the future – every single one. The bigger the business, the more complex the plans need to be, but even the smallest exporter to the EU will need to know if their export will be subject to tariffs.

We need a sense of purpose and of direction. We need a unified parliament to come behind a single objective to deliver a successful Brexit. We just need a single objective.