We eagerly await the Minister’s note, but due to the wonders of modern technology, one can look it up on the web. Level 4 is clearly described as fully autonomous and

“designed to perform all safety-critical driving functions and monitor roadway conditions for an entire trip.”

However,

“it’s important to note that this is limited to the ‘operational design domain’ of the vehicle—meaning it does not cover every driving scenario.”

I hope that the hon. Gentleman will agree that the transition question arises in relation to level 4 when vehicles move from one driving scenario to another.