“Necessary” is a high bar to meet. The courts have said that the nearest paraphrase for “necessary” is “really needed”, but such a test would be too constrictive.

Common approaches are being considered in a number of areas, which will help to provide the necessary environmental protections. While the UK Government and the devolved Administrations sometimes make different choices on implementation of some policies, these common rules provide significant benefits, such as making it simple for businesses from different parts of the UK to trade with each other and enabling us to meet our international obligations and, therefore, protect our common resources. This is pertinent to the environmental commitments and protections that he rightly raised.

On Amendment 113, the secondary legislation made using the powers under Clause 7 will be subject to parliamentary oversight, using well-established procedures. This amendment would require us to make all the regulations within one month of Royal Assent. This would not allow time for stakeholder consultation and would also not allow sufficient time to make all the SIs—noting that affirmative SIs take longer than one month to be laid and made.

Amendment 66 also goes further than the existing principles set out in EU and UK law today. In particular, it would introduce a new power for courts to declare provisions in primary or secondary legislation to be incompatible with the environmental principles. This power does not currently exist in either EU or UK law.I will go a little further. The precautionary principle is included in, for instance, the REACH regulation and the invasive species regulation, so it will be preserved by the Bill in those areas. Similarly, the polluter pays principle, referred to by a number of noble Lords, is referred to in the Water Environment (Water Framework Directive) (England and Wales) Regulations 2017, which will also be preserved by the Bill. EU case law on chemicals, waste and habitats, for example, includes judgments on the application of the precautionary principle to those areas, which will, likewise, be preserved by the Bill.The purpose of the Bill is to convert and preserve the law so that after exit it continues to operate as intended. This includes many of the directives referred to, such as the wild birds and habitats directives, as transposed through domestic legislation. It is not appropriate for the Bill to introduce new powers of this kind.   Share this contribution Lord Deben   Share this contribution My noble friend has explained that some things are already there. Can he give me an undertaking that if we were in consultation to remove from this amendment anything that is additional to where the European Union now is, he would accept this amendment? That is the issue. If we were to do that, would he accept the amendment?   Share this contribution Lord Callanan   Share this contribution I cannot give an assurance that we would do that. This is about legal certainty—taking a snapshot of existing laws and transferring them into UK law as it is. It is not about creating new powers within the Bill. There will be a further opportunity to discuss this when we publish our proposals for the new body.   Share this contribution Lord Deben   Share this contribution I have not said “new powers” or talked about creating legal certainty. He keeps using that phrase. I merely said that if we amend this so that there is no additionality to what is already in European law, will he accept that as an amendment?   Share this contribution ​ Lord Callanan   Share this contribution If a new amendment is put forward, of course we will look at it and consider its legal implications. I can give that assurance.