MOT for trailers: What you need to know to pass it correctly

When we think about going through the vehicle inspection (ITV), most of us picture a car, a technician with a flashlight, and a conveyor belt checking every inch of our vehicle. But trailers are also subject to inspection. And no, it's not enough for them to be properly hitched to the car.

Passing a trailer's ITV requires preparation, knowledge, and a bit of strategy. Because even if they don’t have an engine, they’re not free from risk: a faulty axle, a broken tail light, or a loose hitch can have fatal consequences on the road. So, if you have one parked in your garage, this article will help you avoid any trouble with your trailer.

Does your trailer need an ITV inspection?

When it comes to ITV, regulations clearly distinguish between two types of trailers:

• Light trailers (GVWR ≤ 750 kg): They are not required to pass an ITV independently. But beware: they must comply with other rules, such as using a duplicate license plate, reflectors, and not exceeding the towing capacity listed in the vehicle's technical specs.
• Heavy trailers (GVWR > 750 kg): These must undergo mandatory ITV inspections, with frequency depending on the trailer’s age.

Inspection frequency: how often is it required?

This part is straightforward but essential:

- Trailers > 750 kg:

• Up to 10 years old: every 2 years.
• Over 10 years old: every year.

And what about agricultural trailers? Careful — agricultural-use trailers have their own regulations (RD 1013/2009), but they also require ITV depending on their type and use. So no, they’re not exempt just because they go from one field to another.

Required documentation:

ITV is not just technical — it’s also administrative. Here’s what you’ll need to bring:

• Trailer’s technical data sheet.
• Registration certificate.
• Insurance proof (some stations ask for it, others check it online).
• Personal identification.

It’s highly recommended to check everything the day before. There’s nothing more frustrating than wasting a morning over a forgotten document.

What exactly will be checked?

The inspection is thorough, even if the trailer doesn’t have an engine. Some key items include:

• Braking system: if the trailer has inertia brakes or an independent system, its effectiveness will be tested.
• Lights: tail lights, indicators, brake light, and fog light must all work.
• Tyres: must be in good condition, with visible tread, no cracks, and correct pressure.
• Chassis and frame: checked for cracks, welds, corrosion, and overall condition.
• License plate: must be visible and securely attached. If it's a duplicate, it must match the car’s plate.
• V-20 sign: mandatory if the load extends beyond the trailer. No sign, no pass.

As for the chassis number, it must be legible. If it’s rusty or covered in dirt, the inspection may be suspended until it’s cleaned.

What happens if you fail… and how to avoid it?

Driving with an uninspected trailer is illegal and carries serious penalties. If the inspection is expired or unfavorable, the fine is €200. If the result is negative, the trailer can only be driven to a garage or ITV center, and ignoring that can cost you €500.

The worst part? If you have an accident with an expired ITV, your insurance may refuse coverage, and you’ll be stuck paying the damages yourself.

The good news: it’s easy to avoid if you show up prepared. Review this quick checklist before your appointment:

• Lights, tyres, and plate in good condition
• All documentation (data sheet, registration, insurance)
• Cleanliness — especially the chassis number
• Load properly secured and signaled (V-20 if needed)
• Appointment booked in advance

Prevention is much cheaper — and far less stressful — than paying for oversight. Get your ITV done on time and hit the road with peace of mind.

Getting your trailer through the ITV is easier if you know what youre doing

Owning a trailer is a real advantage. You can haul anything: motorcycles, tools, furniture — even livestock. But with that freedom comes responsibility. The ITV isn’t just red tape — it’s a safeguard that ensures you’re not towing a “weapon on wheels”.

So do it right. With time. With care. And with the peace of mind that everything’s in order before you hit the road.