When towing a trailer, caravan, or horsebox with a car, you must ensure that your equipment meets certain safety standards and is used correctly. If you use a vehicle or trailer in a dangerous condition, you can be fined up to Β£2,500, be banned from driving, and get 3 penalty points.
1. Towing Bars (Type Approval)
If you get a tow bar for your car, it needs to be 'type approved'. This means it meets EU regulations and is designed specifically for your car.
- β’Type-approved tow bars have a label with an approval number and details of the vehicles it is approved for.
- β’Exception: If your car was first used before 1 August 1998, your tow bar does not need to be type-approved.
2. Towing Mirrors
You must have an adequate view of the road behind you.
- β’You MUST fit suitable extended towing mirrors if your trailer, caravan, or load is wider than the rear of your car, or if it obstructs your rearward view.
- β’If you drive without proper towing mirrors when you need them, you can be fined up to Β£1,000 and get 3 penalty points.

3. Breakaway Cables and Brakes
You must ensure that the trailer braking system is in full working order.
- β’Breakaway Cable: You must use a breakaway cable or a secondary coupling (like a safety chain). This is a legal requirement. It engages the trailer's brakes (if fitted) or stops the trailer completely if it becomes detached from the car.
- β’Unbraked Trailers: A loaded trailer with no braking system must not weigh over 750kg, and it must not weigh more than 50% of the towing car's weight.

4. Vehicle Towing and Loading Rules (Rule 98)
Before towing, as a driver, you must follow strict loading rules to ensure stability:
- β’You must not overload your vehicle or trailer, and you should not tow a weight greater than that recommended by the manufacturer.
- β’You should distribute the weight in your caravan or trailer evenly, placing heavy items low down and over the axle(s).
- β’You must ensure a downward load on the tow ball. The manufacturer's recommended weight and tow ball load should not be exceeded. This minimizes the possibility of swerving or snaking and loss of control.
- β’You MUST secure your load, and it MUST NOT stick out dangerously. Make sure any heavy or sharp objects and any animals are secured safely so they do not hit someone in a collision.
5. Number Plates and Headlights
- β’Number Plates: You must display the same number plate on your trailer as on your towing car. If you tow more than one trailer at a time, you must fix the number plate to the trailer at the very back.
- β’Headlights: Carrying a heavy load or pulling a trailer may tilt your vehicle upwards at the front. You may need to adjust your headlights downwards to avoid dazzling other road users.
6. Driving on Motorways
When towing any vehicle or trailer on a motorway:
- β’You MUST NOT drive in the right-hand lane of a motorway with 3 or more lanes.
- β’You are subject to a lower national speed limit of 60 mph on motorways and dual carriageways, and 50 mph on single carriageways.

7. American Caravans and Free Safety Checks
- β’American Trailers: American trailers and caravans do not always meet European safety regulations (especially regarding brakes and couplings). If you want to use an American caravan or trailer in the UK or the EU, you must first check that it is legal.
- β’Free Safety Checks: You can get a free safety check for a trailer up to 3,500kg through the National Trailer and Towing Association's (NTTA) free safety checks scheme.