Changes in vehicle use category
As a registered owner, you can request a change of a vehicle's category of use by submitting an application to the Icelandic Transport Authority. The application applies to the following use categories:
general use
vehicle rental
vintage vehicle
island-use vehicle
agricultural vehicle subject to inspection (e.g., tractors)
In some cases, the vehicle must undergo a regular inspection, a modification inspection, or both before the change in registration can be approved.
Examples of common changes requiring a modification inspection at an inspection station:
registration of towing equipment
off-road modifications
registration of a vehicle's category of use:
taxi
driving instruction
motor caravan
changing a passenger car into a van or truck
changing number plates from regular number plates to VAT number plates
Change of inspection frequency
A vehicle must have been inspected in the calendar year, irrespective of the vehicle's inspection month, if it is intended to change the category of use to one with a higher inspection frequency.

Service provider
The Icelandic Transport Authority