What should you do?
Know your vehicle's height including any load or roof box, and find another route if it exceeds the height shown.
How to recognise it
Yellow rectangular plate reading Airde Shábháilte / SAFE HEIGHT, with the height given in metres and in feet and inches.
Common confusion
It advises the safe height clearance; it is not the same as a circular regulatory height restriction sign that prohibits taller vehicles.
Explanation written by the My Driving Test editorial team using the Department of Transport Traffic Signs Manual conventions and the RSA Rules of the Road.
