This Consulate General is not competent for information on USA visa regulations, which change continuously due to security reasons.
Italian nationals who wish to travel to the United States should contact the US Consulate General in Hong Kong or consult the US State Department website on the Electronic System for Travel Authorization (ESTA).
In general, to travel to the United States, Italian nationals need an electronic passport valid for all countries recognized by the Italian Government, as well as the advance authorization to travel to the USA to be obtained online called Electronic System for Travel Authorization (ESTA).
For more information on passports, please see the dedicated page on the institutional website of the Ministry of Foreign Affairs