If the driver has had too much alcohol, the car will not start. Minister Salvini has formed the decree defining the characteristics and methods of installation of the alcolock device. The text provides precise guidelines to authorized workshops for installation and users. This is one of the most significant innovations introduced by the new Highway Code, in force since December 14. The alcolock is a system that prevents the vehicle from starting if the driver fails a breath test. The engine will only start if the alcohol level is zero. The new code makes the installation of alcolock mandatory for drivers already sanctioned for driving with a blood alcohol level above 0.8 g/l, setting itself up as a key measure for repeat offenders, who will only be able to drive vehicles in which such a device is installed. The decree stipulates that alcolocks can be installed on different categories of vehicles used to transport both people and goods.