Motor vehicles with maximum speed exceeding 15mph require two matched headlamps positioned:
so that the highest part of the illuminated surface is not more than 1,200 millimetres from the ground;
so that the lowest part of the illuminated surface is not less than 500 millimetres from the ground;
on vehicles first used on or after 1 January 1972, so that the outer edges of the lamps are not more than 400 millimetres from the edge of the vehicle.