Descent claims after 27 March 2025
D.L. 36/2025, converted by L. 74/2025, took effect on 28 March 2025. A claim filed with a consulate, a comune or a court by 23:59 Rome time on 27 March 2025 is outside the restriction. Anything filed later has to pass one of the exceptions.
The first exception is a parent or grandparent who held only Italian citizenship. A great-grandfather who emigrated and naturalised elsewhere does not help if every link after him also carried a second passport.
The second is a parent who lived in Italy for 2 continuous years after becoming Italian and before your birth. Both conditions count: 2 years spent in Italy after you were born do not qualify, and neither do 2 years spent there before the parent was recognised.