Using abnormally large or heavy vehicles on the road

How vehicles which are outside the normal dimensions and weights usually allowed on the road ('special types') can legally be used on the road.



This guide tells you what the rules are for ‘special type’ vehicles which don’t comply with the usual regulations on dimensions and weights.

Published 13 April 2016
Last updated 21 May 2018 + show all updates
  1. Updated the advice on special order movements and over-width projections
  2. The guide has been updated with changes to the advice on Drivers’ hours and tachograph regulations in respect of mobile cranes and engineering plant.
  3. First published.