A free vote by MPs is an option, says Brexiteer Liam Fox - but he thinks a new EU referendum unlikely.
BBC News NI explains the Republic of Ireland's unique position when it comes to approving some EU laws.
Britons will not need a visa but will have to apply for a travel document, which lasts for three years.
The PM accuses her predecessor of "undermining" talks with the EU and "insulting the office he once held".
What we learned about the Leave result
Could the Canada-EU trade deal be a model for the UK's relationship with the EU after Brexit?
Use our search to find out what the key terms and jargon mean.
How has Brussels dealt with political complications in the past?
The 46-year old former banking executive is known as a loyal technocrat able to get things done.
British berry growers have expanded rapidly on the back of cheap EU labour but the good times could soon be over.
The government has been found to have been in contempt of parliament. See how your MP voted.
The key passages of draft political declaration