Time is short so I shall make just two brief comments. First, I support amendment 59 and thank the SNP on taking the initiative on pulling that together. The hon. Member for Glenrothes (Peter Grant) made a compelling speech on the importance of remaining inside the single market and customs union, and I join him in appealing to Labour Front Benchers even at this eleventh hour to support it. As he and many other Members have said today, the Government have no mandate for the kind of extreme Brexit they are pursuing. The irony in the Labour Front-Bench position is that the NHS crisis or the inequality crisis or the housing crisis are all far harder to tackle if the UK is outside the single market and customs union. My second point is to commend the hon. Member for Wakefield (Mary Creagh) on her speech on her new clause 12. I agree entirely with what she said. She says the environmental plan lacks a “howâ€. That is true, but, crucially, it also lacks a “when,â€ and a key question at the heart of my new clause 18 is about timing. The Government are in theory at least committed to bring forward this new domestic environmental regulator, which is supposed to set out the way in which environmental legislation will be enforced once Brexit happens, if it happens. I am concerned that there is nothing to guarantee that that new body will be in place by Brexit day. We have had positive written statements. For example, the Secretary of State for Environment, Food and Rural Affairs explained in a written statement last week that the Government's 25-year environmental plan will be underpinned by what he says is“a comprehensive set of environmental principlesâ€to “ensure strong governanceâ€. He also talks about consulting on setting up“a world-leading environmental watchdog, an independent, statutory body, to hold Government to account for upholding environmental standards.â€- That is all very well, but what is not addressed is the question of timing, which is why my new clause 18 is so important. We need to make sure that there is no so-called governance gap, and there is still a very real risk that, after Brexit day but before this new body comes into place, we will have a governance gap where environmental legislation that might well have been brought across from the EU to the UK still will not be enforceable. We will still not have that replacement for the Commission and the ECJ. We will end up with what has been called zombie legislation. This new clause 18 is vital; we must not be left with that legal gap. We need legal certainty. That is what this provision will provide, and I urge the Government to think again about supporting it.