Taxation (Cross-border Trade) Bill

I think it is clause 32 that sets out the basis on which the powers will be dealt with. The Bill is extremely clear that any treaty between ourselves, as a customs union, and another territory or customs union must be subject to a draft affirmative statutory instrument. Having been laid, such an instrument would not come into effect immediately, but only when Parliament—or, specifically, the House of Commons—had considered and passed it. At that point, and only at that point, would an Order in Council follow, which would effectively bring the will of the House into law.