caravantowingmirrors.co.uk

The Law in the United Kingdom specifies, you must be able to see clearly down both sides of the caravan, and see 4 meters either side of the caravan at a distance of 20 meters behind the rear of the caravan.

This in reality means, if your caravan/trailer is wider than the rear of your tow vehicle, you must fit towing mirrors to comply with the law. You can be fined up to £1000 and get 3 point on your licence for towing blind.