I am sorry to disappoint the noble Baroness, but we will be having a number of Brexit Bills, not least of which will be the withdrawal agreement and the implementation Bill, once we have reached agreement. I shall endeavour to respond to all the questions that I have been asked.
Repealing the European Communities Act is an important step to ensure that there is maximum clarity on the law that will apply in the UK after we leave the EU. I cannot see the sense in needing a separate Act to repeal the European Communities Act. This repeal in Clause 1 is front and centre of the Bill; indeed, this Bill was originally called the great repeal Bill. To prevent this Bill from repealing the European Communities Act would undermine perhaps the most important part of it.
I suspect that I have read the intention of the noble Lord, Lord Adonis, correctly when I say that he would prefer the European Communities Act to be repealed in the withdrawal agreement and implementation Bill that was announced by the Secretary of State in November. That Bill would then deal with the implementation period and our relationship to EU law during that period. This may be founded on the misconception that, if Parliament does not repeal the European Communities Act and appoint an exit day, that will somehow prevent the UK exiting the EU. If that is the case, I am sorry that I have to disappoint the noble Lord: our leaving the EU is a matter of international law, and we are leaving no matter what is or is not done to the European Communities Act.
I will address the noble Lord’s question about exit day and procedure. What will become Section 14(4)—currently Clause 14(4)—could be used to change the exit day in the Bill only if the Article 50 period were to be extended; it could not be used to prevent us leaving the EU. That is a matter of international rather than domestic law. The exercise of Section 14(4) to alter the exit day in domestic law in accordance with Article 50 would be subject—in answer to the noble Lord, Lord Tyler—to the affirmative procedure in both Houses. I will give more detail on that in a minute. We do not expect to use this power and we are leaving the EU on 29 March 2019.
The noble Lord, Lord Hain, and the noble Baroness, Lady Hayter, asked further questions about our exit day and the amendment. In the other place we tabled an amendment which set exit day in order to provide certainty and clarity, and we accepted further amendments on the issue, again to provide further clarity. The amendments set the exit day in the Bill as 11 pm on 29 March 2019, while retaining the technical ability to amend the date at a later stage. As I said, that can happen only if the European Council—including the UK, of course—unanimously decides to change the date on which the treaties cease to apply to the UK, as set out in the famous Article 50. We do not intend this to happen.
I will give the noble Lord, Lord Tyler, more detail on his point. Any change to exit day in domestic law under the power of what will become Section 14(4) will be by the affirmative procedure, guaranteeing a vote in both Houses. The affirmative procedure in this instance is provided for in paragraph 10 of Schedule 7.
Providing for the date of the repeal of the 1972 Act in the Bill that implements our withdrawal agreement might seem tidy in certain scenarios, but it would put the legislative cart before the diplomatic horse in what I feel would be quite a dangerous way. Both the withdrawal agreement and the implementation period are, of course, still matters for negotiation. This Bill, being agnostic on the negotiations, is designed to prepare the statute book for our withdrawal. I say to the noble Baroness, Lady Hayter, that there will be additional legislation to implement our withdrawal agreement. As I said a moment ago, this Bill is designed to implement the clearly expressed will of the British people to leave the EU, and therefore the date of repeal is set at the point that the UK will fall out of the Treaty on European Union and the Treaty on the Functioning of the European Union.
There are many demands on parliamentary time, as we know to our cost, and this is the Bill that will prepare our statute book for exit. The amendment would force the date of repeal into the agenda of another Bill. This is the right time and place for the debate on the repeal of the ECA, and the debate should incorporate all the additional context and provisions necessary for a smooth exit. Indeed, if we did not reach an agreement and the second of the noble Lord’s amendments were agreed, we would be in a state almost of paradox. To repeal the ECA, the Government would be compelled to enact a statute for the purposes of Clause 9(1) of the Bill— a clause which itself is predicated on the existence of a withdrawal agreement. So we would be forced to enact a statute enabling us to approve the final terms of the withdrawal agreement and set the date of the repeal of the European Communities Act without such a withdrawal agreement existing. That is too much of a logical conundrum to ask any Bill to bear, and not an acceptable way to go about legislating.
Clause 1 will provide certainty to businesses and individuals that the European Communities Act will be repealed on exit day. Any attempt to change this while negotiations are ongoing would lead only to a lack of clarity on the law that will apply in the UK after we leave the EU. This would run counter to the primary aim of the Bill, so I hope that the noble Lord will be willing to withdraw his amendment.