My Lords, I thank noble Lords for the opportunity to address this important set of issues around the UK’s future relationship with Euratom. As my noble friend Lord Henley said, the EU and Euratom are uniquely legally joined. Noble Lords will be aware that when we formally notified our intention to leave the EU, we also commenced the process of leaving Euratom. I repeat my noble friend’s assurances, however, that the Government want to maintain the continuity of our mutually successful civil nuclear co-operation with Euratom and other international parties when we leave the EU.
The first half of the proposition of Amendment 4 —that,
“it is no longer possible to retain membership of Euratom”—
has already passed. On 29 March 2017 the Prime Minister notified President Tusk of the United Kingdom’s intention to withdraw from Euratom. We are withdrawing from Euratom but we want a close relationship with it in the future. I believe that it would be deeply irresponsible of Parliament to pass an amendment which, quite explicitly, prevents us from using the powers in this Bill until we have attempted to do exactly the opposite
of what the Article 50 letter says we are doing. That leaves the second half of the proposition: that we achieve, “an association with Euratom” that means that it is Euratom rather than our own regulator, the ONR, that carries out safeguarding in the UK after we leave the EU. To reiterate the point made by my noble friend, while the Euratom treaty allows for the conclusion of association agreements that allow third parties to participate in some Euratom activities, these agreements have so far been limited primarily to research and training activities.
This amendment would require us to have explored every avenue and concluded that,
“it is no longer possible”,
before we make regulations to enable the UK’s own domestic regime. That presents enormous timing difficulties and will introduce a risk of the one thing I believe everyone agrees we must avoid—being left with nothing in place from day one of Brexit. I do not believe that the industry would support such a position. We simply cannot await the outcome of the future relationship discussions before we use the regulation-making powers in the Bill. Of course, it may all happen very quickly but, then again, it may not. It would be deeply irresponsible to put ourselves in a position where we cannot exercise the powers in the Bill.