To leave the EU, Britain needs to trigger Article 50 of the Lisbon Treaty on European Union, formally notifying of its intention to withdraw. As Jacob Greaves reports, that's where it all could start to get tricky.
There'e been enough talk about it happening, but how do you actually Brexit? Like pretty much everything else in this referendum, there's some dispute . after all it would be unprecedented for the EU. But David Cameron promised after a leave vote he would immediately trigger Article 50 of the Lisbon treaty. SOUNDBITE (English) REUTERS REPORTER, JACOB GREAVES, SAYING: "What that means is a two years' timetable set in motion to agree the terms of departure. But the first part won't be taking place here. " The other 27 EU members will have to agree what offer to make the UK. And here's where it gets tricky. That will need qualified majority approval. In other other words, at least 20 of the remaining members. It's no mistake the balance of power appears weighted with the rest of the EU. ...exactly to try and avoid this type of eventuality. To extend negotiations past 2 years agreement from all member states will be needed. The Leave campaign has argued article 50 might not even need to be invoked and that the EU befefits from UK trade...and will want to continue to do so. But both sides agree this will be a long and drawn out process, during which the UK will actually remain in the EU