The British Parliament must vote on whether the government can start the Brexit process, that is according to a ruling by the Supreme Court.
What this means is that Prime Minister Theresa May cannot begin talks with the EU until MPs and peers give their backing – although this is expected to happen in time for the government’s 31 March deadline, the BBC reports.
But the court ruled the Scottish Parliament and Welsh and Northern Ireland assemblies did not need a say.
Brexit Secretary David Davis will make a statement to MPs at 12:30 GMT.
During the Supreme Court hearing, campaigners were said to have argued that denying the UK Parliament a vote was undemocratic.
Reading out the judgement, Supreme Court President Lord Neuberger said: “By a majority of eight to three, the Supreme Court today rules that the government cannot trigger Article 50 without an act of Parliament authorising it to do so.”
The court was also reported to have rejected arguments that the Scottish Parliament, Welsh Assembly and Northern Ireland Assembly should get to vote on Article 50 before it is triggered.
Lord Neuberger was quoted by the BBC to have said: “Relations with the EU are a matter for the UK government.”