Correct as at 29th April 2024. It may be superseded at any time.

Extract taken: from Vehicle Inspection Portal > VIRMs > Entry certification > Inspection and certification > Vehicle exterior > Dimensions

2-2 Dimensions

Vehicles must comply with the requirements relating to mandatory equipment set out according to their vehicle type in:

There are no additional requirements in respect of dimensions for the inspection and certification of vehicles for entry into service.