Legal requirement in Milan from 15 November.
As winter weather approaches and the first snow is already falling around Milan, drivers must mount winter tyres, or at least be able to demonstrate they have snow chains on board, to use roads with the warning sign.
Even some stretches of motorway will be subjected to the rule, which lasts until 30 April.
By law, regional and provincial authorities are allowed to determine which roads are affected, and even for which periods.
In theory, the law merely requires the chains to be carried in the vehicle if winter tyres are not mounted. But anecdotal evidence suggests traffic police will sometimes ask drivers to demonstrate that they know how to mount the chains. This is another reason to check that your chains are the correct size for your tyres, and to refresh your knowledge of how to put them on – something it’s easy to forget if you haven’t needed to use them before, or at least not recently.