Last time to formalise the decision to change exit day as full EU28 Council and thus EU law, the Government had to accept it, via a letter from Ukrep.
Then was published in Official Journal - then becomes official new exit date.
As so much that was anonymously briefed, has not happened.
Vote needed for extension 1. current PM rebelled and voted against.
Procedure then changed to “negative” a ie automatically becomes law, but can be “prayed against” to annul. Bill Cash + 81 MPs did for ext 2: BJ did not
Should require regulation to be tabled by junior Dexeu minister - was Robin Walker, then J. Cleverly. But some doubt this is required.
No 10 would be obliged to find time for it tomorrow.