According to Italian law, drivers with a license issued by a non-EU country are required to possess either a sworn translation of their original and valid license or an international driving permit.
Car rental companies are not required to ask for them, however, keep in mind that your insurance is void without it and you could get a fine if you're stopped.
A translator's stamp or a certificate of accuracy won't be accepted, even if the translator is registered at court. To be legal, the translation translation must have a 16 euro revenue stamp (tax) and the necessary court clerk stamps.
As this entails a morning queueing at the courthouse, unfortunately it's more expensive than a regular translation.
If you require this service, just send a clear scan or photo of the front and back of your driver license via email (email@example.com) The sworn translation (aka affidavit) will be ready in two working days and it will be valid for one year.
Other translations that usually require an affidavit or being certified at court, particularly for immigration purposes, are the following:
- birth certificate
- marriage and divorce certificate
- residency certificate
- residence permit
- university degrees and transcripts
- pending proceedings certificate
- criminal records certificate
- payroll sheet
- identity card
- fiscal code card
Please note that in order to be accepted some of these may simply require a certified translator's stamp together with a statement by the translator. You need to check with the office requesting it.