My Lords, I will address Amendment 18 first. I thank the noble Lord, Lord Purvis of Tweed, and all who have spoken in the debate. The themes from the noble Baroness, Lady Jones, the noble Lord, Lord Fox, and my noble friends Lord Patten and Lady Hooper are similar points. I will try to address them as much as I can. I also recognise the assertion from the noble Lord, Lord Purvis, that this is a probing amendment.
This is an important issue and I fully understand the need to provide some reassurance. I will try, as much as I can, to do so. I start by reiterating that we value and benefit from our international agreements, and we want to continue to co-operate with our global partners across a range of issues—not just trade but air services, climate change, international development and nuclear co-operation. As such, we are working with countries and multilateral organisations worldwide to put in place arrangements to ensure continuity of those international agreements.
We have agreed with the EU that it will notify treaty partners that, during the implementation period, the United Kingdom is to be treated as a member state for the purposes of these agreements. We think that this approach is the best platform for continuity during the implementation period across all agreements, but it would be for those individual third countries and multilateral bodies to determine whether any domestic action, including amendments to domestic legislation, is required. We do not expect that such actions will be required in every instance, but we understand that some parties, as the noble Lord, Lord Purvis, said, will choose and be required to take some internal steps where they think that to be necessary.