Serie A squads will now select a squad of 25 players with four home-grown in Italy, and a further four home-grown in the club’s respective youth academy.
Under 21 players are not required to be listed, meaning a club can have as many as they like in and around match-day squads, on the basis that most of these are Italian anyway.
Clubs will have the same number of players arriving from outside the EU, but they will now be unable to sign a player and loan them abroad to free up one of these spaces.
A new non-EU player can only replace an old one if they have held a professional contract for three years (since 2012).
On the academy front, non-EU youth players must now have spent four years in the country with their parents and for non-footballing reasons, before they can be registered.