Wheel chocks - are they law or just a good idea?

Wheel chock regulations are very unclear, and this comes about partially because of the wide range of applications for wheel chocks. From preventing trailers at loading docks during unloading from moving to stabilising a camper trailer, wheel chocks, when correctly deployed, can help prevent accidents and property damage from unexpected vehicle movement. So, whether wheel chocks are required by law or not – they are always a good idea.