Hi, I think you need to check the regulations of where you live.
I am in New Zealand, and bought seats to put in the back of our van which is certified at 3 seats currently. I have read that because I am putting OEM parts in from another exact model I do not have to have it assessed. Otherwise I would have to take it so they could check mounting points etc at around $1000.
It has taken me a while to find the right seat as there are so many variations in the Toyota Hiace.
I am in New Zealand, and bought seats to put in the back of our van which is certified at 3 seats currently. I have read that because I am putting OEM parts in from another exact model I do not have to have it assessed. Otherwise I would have to take it so they could check mounting points etc at around $1000.
It has taken me a while to find the right seat as there are so many variations in the Toyota Hiace.