Domanda 268, Air Law - ATPL - Airline Transport Pilot license

A single period of six months in the case of a flight crew member of an aircraft engaged in commercial operations.
Two consecutive periods each of three months in the case of a flight crew member of an aircraft engaged in non commercial operations
In the case of a private pilot, a single period of 12 months
A single period of six months in the case of a flight crew member of an aircraft engaged in non commercial operations.