The UK Government has published the European Union (Withdrawal) Bill or "Repeal Bill". The first line of the bill says the European Communities Act 1972, which took Britain into the EU, will be "repealed on exit day" - this will end the supremacy of EU law and stop the flow of new regulations from the EU.  All existing laws derived from the EU will continue to be in force - they can be changed or ended by further legislation introduced by the UK Government. 

The bill does not detail policies line-by-line but transfers all regulations into domestic law and provides the UK with two years after Brexit to correct any "deficiencies" arising from the transfer. This Bill has been introduced and received its first reading in the House of Commons with David Davis as the lead minister. It is not expected to be debated until the Autumn, but will need to have been passed by the time the UK leaves the EU, currently set for March 2019.

However, opposition parties are already rallying to obstruct the Bill's process. Labour's shadow Brexit secretary Sir Keir Starmer has made clear his party would not support the Bill in its current form. He is demanding concessions in six areas, including guaranteeing workers' rights in the UK do not fall behind those in the EU, and curbs on the power of government ministers to alter legislation without full parliamentary scrutiny.

There is also concern from devolved parties with the Scottish National Party stating there needed to be "clarity" over which powers repatriated from the EU should go to the devolved nations whilst the Labour party's First Minister of Wales, Carwyn Jones, described the bill as "a crude power-grab from London, which strikes at the heart of devolution.