Passport or military ID. Certified birth certificates, translated into Italian are required also. You will also need the declaration Atto Notorio which you can obtain from the italian Consulate in the U.S. Additionally, you will be asked to provide a copy of the Nulla Osta, which is a statement sworn before an U.S. Consular officer in Italy.
If you are divorced or widowed, you need to show evidence such as an original death certificate or divorce decree. You need to have these translated into Italian.
Posting of banns for Italian residents takes place over two consecutive Sundays. Nonresidents do not have a waiting period.
A legal package from a wedding vendor may run as much as 1,500. There will also be other fees charged by the U.S. Consular offices with the declarations needed. Plan on spending roughly $500.
Same Sex Marriages:
No. However, in Pisa and Florence, same-sex couples may register as domestic partners. It is a symbolic gesture, and couples who register as same-sex partners are not legally married.
Witnesses:
Two are required to be with you at the Civil Registrar where you will be married.
Under 18:
If you are under 21 years old, you must have an affidavit of consent of your parents or legal guardian.
PLEASE NOTE:
Marriage license requirements often change. The above information is for guidance only and should not be regarded as legal advice.It is important that you verify all information with the local marriage license office before making any wedding or travel plans.

