What is the procedure I must follow to grant Italian citizenship to my spouse?

The acquisition of citizenship by marriage is made through an oath. The married person can apply for this right if he/she has 2 years of marriage with residence in Italy or 3 years if he/she is out of the country. As of 2015 requests of this Nature must be made to the Ministero dell'Interno.
When filling out the application, you have to write the name and surname as it appears on your birth certificate. Select the function "manage demand" and complete the requirements. Finally, please note that you will be asked for the following documents:
Apostilled birth certificate translated into Italian.
Criminal record certificate from your country.
Identity document.
Cancellation of the application fee.
The application can be accepted, accepted in moderation or denied. Denial is due to the presence of a serious criminal record or false documentation. Once these online steps are completed, you will be notified by mail of the date of consignment of the documents at the embassy of your country.
If the spouse resides in Italy, the request is made in his or her commune of residence in compliance with the above mentioned requirements.