As a general rule, the British Parliament does not legislate on matters under the jurisdiction of the Scottish Parliament, Senedd Cymru or the Northern Ireland Assembly without the consent of the relevant body. This conception of the Constitution is sometimes called the Sewel Convention. Approval is made by a legislative approval motion. Below are the relevant information on the consent provided by decentralized legislators with respect to this bill, including in cases where the competent legislator has decided not to give its consent. As part of the English votes for English laws procedure, the spokesperson certifies bills or bills provisions that concern only England and/or England and Wales. With regard to financial accounts, the spokesperson may certify funding applications or clauses or timetables exclusively relating to England, Wales and Northern Ireland. (Similar information about the invoice itself is available in the explanatory notes- see above.). After winning a Conservative majority in the elections, the law was revised and reintroduced on 19 December, after being passed at second reading the following day. The revision of the law in December repealed the provisions adopted in previous versions of parliamentary control of the Brexit negotiations.  The amended bill was passed by its peers on Tuesday evening without a vote and will return to the House of Commons on Wednesday afternoon after questions from the Prime Minister. On November 13, 2017, Brexit Minister David Davis announced a new bill to enshrine the withdrawal agreement in national law through primary legislation.
In further talks in the House of Commons, Davis said that if the UK decided not to pass the law on 29 March 2019, the UK would remain on track to leave the EU without a deal, having invoked Article 50 in March 2017, following the adoption of the Notification of Withdrawal Act 2017.  The Brexit Act – officially known as the EU Law (Withdrawal Agreement) – guarantees that the UK will leave the EU on 31 January with an agreement. On January 22, 2020, the law was passed by the House of Lords without further amendment. The next day she obtained royal approval.   The European Commission will present to the Council its draft comprehensive negotiating mandate shortly after the UK`s withdrawal, meaning that the EU and the UK will have a maximum of more than 11 months to conclude a negotiation that, according to EU-negotiated agreements with Canada and Japan, would normally take several years. It took more than five years for Canada and the EU to negotiate their comprehensive economic and trade agreement, and Japan and the EU negotiated their economic partnership agreement for nearly five years – and as complicated as they are, they are much less complicated than the partnership described in the political declaration. The ban on the extension of the transition period means that the UK and the EU are very unlikely to achieve the `ambitious partnership` broad, deep and flexible on trade and economic cooperation“ provided for in the political declaration and, at best, to reach only a limited free trade agreement, limited to trade in goods but not to services, while services account for 80% of the UK economy and 40% of its exports to the EU.