Members of Parliament will have the final say on any deal the government negotiates on Britain’s withdrawal from the EU, Brexit Secretary David Davis said today.

He said the Brexit deal covering “withdrawal” issues will only hold if it is approved by MPs and peers in a new piece of legislation to put it into British law.

The Brexit Secretary announced a Withdrawal Agreement and Implementation Bill, which MPs will be able to amend, to cover areas such as citizens’ rights, the so-called divorce bill and a transition period.

In what will be seen as a concession to Tory rebels ahead of potential rebellions on the EU (Withdrawal) Bill this week, Mr Davis said the new legislation will provide “certainty and clarity” as Britain leaves the EU.

Amid suggestions that pro-EU Tories are willing to rebel on the Withdrawal Bill this week to ensure a meaningful vote on the Brexit deal, Mr Davis said in a House of Commons statement: “It’s clear that we need to take further steps to provide clarity and certainty both in the negotiations and at home, regarding the implementation of any agreement into United Kingdom law.

“I can now confirm that once we have reached an agreement we will bring forward a specific piece of primary legislation to implement the agreement.”

He went on: “This confirms that the major policy set out in the withdrawal agreement will be directly implemented into UK law by primary legislation, not by secondary legislation with the Withdrawal Bill.

“This also means that Parliament will be given time to debate, scrutinise and vote on the final agreement we strike with the European Union.

“This agreement will only hold if Parliament approves it.”