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Permesso di Importazione
The Permesso di Importazione (plural Permessi di Importazione; Italian for "Import Permit") is an event currency in Arknights.
Steaks, seasonal vegetables, and fresh fruit to please any soul, or a little something otherwise. The clever ones know what the famiglie want, and will ready it in advance, to be supplied when the time comes.
Usage[edit]
A Siracusan government-issued permit which regulates the importation of food supplies, Permessi di Importazione can be obtained and exchanged for various items at the Dipartimento di Sicurezza Alimentare during the Il Siracusano event.
How to obtain[edit]
Permessi di Importazione are awarded as the first clear reward of all IS operations and the regular drop of Stagione delle Piogge operations, and from Menù del Banchetto missions.
The best IS operations to farm Permessi di Importazione are IS-8, IS-9, and IS-10 due to their above-average 
Orirock Cluster, 
Compound Cutting Fluid, and 
Incandescent Alloy drop rates, respectively.