Nationalists will back the amendment to a motion putting forward Theresa May’s Brexit deal on Tuesday night, if it is selected by the Commons Speaker.
The amendment will be opposed by Conservative, Labour and Liberal Democrat MPs. However, SNP chief whip Patrick Grady claimed that if selected, it would be the first time a majority of Scottish parliamentarians would vote in favour of independence in the Commons.
The motion states that both the Scottish and Welsh parliaments “oppose the UK Government’s exit deal and agree that a no-deal outcome would be complete unacceptable”.
The motion states that Scotland voted against leaving the EU and has been “ignored throughout the Brexit process”, and concludes: “The best future for Scotland lies in becoming, like so many of its neighbours, a full, equal, sovereign independent member state of the European Union”.