4x4 vehicle for sale itv?

We were perusing the cars for sale near consum, near Quesada petrol station,and wondered how a mercedes 4x4 that was there, had an i t v , until January 2020? As i have always thought it was only a yearly inspection?? Just wondering.

If less than 10 years old it's every 2 years. Unless commercial when it's every year.

1st ITV after 4 years then every 2 years until it is 10 then every year.
(Beaten to it by jcee)

Thanks very much for speedy replies, both of you.

I thought commercial vehicles were ITV,D every 6months~?

Commercial vehicles require a test after 2 years. Then every 2 years until it is 6 years old then annually until it is 10 years old then every 6 months.
If you want to check on the period of ITV checks, go to this site ITV Checks
and then click on the icon for the vehicle you wish to view.