Fuera de poblado, deben de circular por la calzada y no por el arcén todos los automóviles y...

Outside built-up areas, all motor vehicles and special vehicles with a maximum authorised mass over 3,500 kg must drive on the carriageway and not on the hard shoulder, because they are large, heavy vehicles and using the hard shoulder could be dangerous or damage the road. On the other hand, the vehicles that must use the hard shoulder are smaller or slower ones, such as bicycles, mopeds, vehicles for people with reduced mobility, animal-drawn vehicles, special vehicles with a MAM of no more than 3,500 kg and vehicles accompanying cyclists. These vehicles must use the hard shoulder whenever there is one, unless road or traffic conditions indicate otherwise.