Introduction to the SMMT Guide > Scope of this Guide

Scope of this Guide

This booklet applies to the use on UK roads of trailers up to 750kg maximum gross weight unbraked and up to 3500kg maximum gross weight fitted with brakes. Above this weight, towing vehicle-operated air or other power-operated braking systems are required and different regulations apply.

Two EC categories are included in this weight range:

O1   up to and including 750k. maximum grossweight

O2    from 750kg to 3500kg maximum gross weight

Most regulations covering trailers used on UK roads are contained in the Construction & Use Regulations 1986. The guide has been written for users of trailers which comply with the construction element of these regulations and concentrates on the use element. If you intend to build your own trailer it is strongly recommended that a copy of these regulations is obtained and studied before you start building it.

Use of trailers in other European countries
Whilst trailers built to UK regulations can be legally driven through other European countries, if you intend to use the trailer abroad for an extended period, or sell a trailer to someone residing abroad, you should be aware that the trailer may not comply with national regulations in that country. It is essential to check with the trailer manufacturer at the earliest possible stage to avoid experiencing difficulties later. If the trailer does not carry full certification for use in the country concerned, it can be time consuming and costly, or, at worst, impossible to obtain the necessary documents to enable registration.