I am going to make some progress. Amendment 116 would require a referendum on accepting the deal or remaining in the EU before the clause 9 power could be used. I do not think that is feasible, and it is not desirable. The Government are clear that the British people have voted to leave the EU. We will deliver on their direction. We will deliver on their mandate. Frankly, this is a pretty thinly veiled attempt to block Brexit and defy the result of the referendum, in contrast to some of the other, legitimate, concerns raised across the House. If hon. Members wanted to hold a second referendum on the terms agreed with the EU, the proper time and place to argue for such a requirement was when the EU Referendum Act 2015 was passed. I therefore urge that the amendment not be pressed. New clause 4 would require separate legislation to set the exit day, and new clause 66 states that the exit day cannot be set before Parliament has given its approval for the terms of the withdrawal agreement. The Government accept the case for legislative prescription of the exit day for the sake of finality and legal certainty, so I hope that the new clause has been rendered unnecessary. New clause 19 and amendment 55 mandate that the power in clause 9 cannot be used until the publication of the withdrawal agreement, and that it should not be available until all other exit Bills have passed. It is clear that regulations cannot be made under clause 9 until an agreement exists and its contents are known. It is not necessary, then, to require on top of that that the agreement be published and placed in the House of Commons and House of Lords Libraries before the power can be relied on. It is of course standard practice to lay international treaties before Parliament under the Constitutional Reform and Governance Act 2010. Equally, it is not right to tie the use of this power to the publication of other primary legislation passed in this Session. I therefore urge the hon. Member for Nottingham East (Mr Leslie) not to press the amendment. Amendment 361 was tabled by my hon. Friend the Member for Bromley and Chislehurst (Robert Neill), who is the Chair of the Justice Committee. The amendment would create a separate power to legislate for the implementation period. I hope that the Government's announcement of a separate Bill-primary legislation-covering the withdrawal agreement and the implementation period addresses his concern.