disposable diapers are available in Italy at any supermarket. If you need them on holidays or off hour, pharmacies have a selected choice too, usually more expensive. Quality is about the same for all brands, but to avoid wet accidents don't spend less that 15,000/20,000 per brick or package. Since someone mentioned potty training, some diapers come also as a real panty, very easy to slip up and down but with limited absorbing power. There's no law about disposal of used diapers, but you better throw them in the garbage can and not in the toilet bowl ....

And, if someone is wondering, diapers are available for adult also in several sizes!

Hope this helps

Paolo, with a Master in diapers after two children :-)