The rules regulating speed limits and the sactions for those who do not abide by them are fundamentally established in article 142 of the Rules of the Road; in addition in some cases the abbreviation of points is foreseen in accordance with art. 126 bis CdS. (add. Rules of the Road).
The directives of the Minister of the Interioro Prot. 300/A/10307/09/144/5/20/3 of 14/08/2009 and Prot. n. 300/A/5620/17/144/5/20/3 of 21/07/2017 have defined specific operating instructions for activities to prevent the traffic accident phenomenon through the control of the speed limit using appropriate devices to control from a distance.
Article 4 of the Decree law 121 (2002) converted with modifications by Law 168/02 establishes, among other things, that such systems can be used by traffic police organs both on type B roads as well as on type C roads.
The installation of systems on type C roads must instead be set up on stretches identified by a special decree by the Prefect. Prefectorial decrees related to stretches of type C roads in the Province where speed detection device systems are installed are Decree Prot. 3547/08/1/Area III C.T. and its integration of 17/12/2012.
The systems which are located on provincial roads have been approved of by the Ministry of the Infrastructure and Transportation in Executive decree Prot. 1279 del 12/03/2009 and Prot. 3504 del 24/06/2011.
Control of traffic light infringements:
The first reference is Article 41 of the Highway Code (Legislative Decree 285/92), which in the paragraphs of 9/10/11 regulates the passage of vehicles to traffic lights.
During the period when the green is lit, the vehicles can proceed in all directions allowed by the vertical and horizontal signs but they cannot engage the intersection area if the drivers are not sure of being able to clear it before turning on the red light (.. .).
During the yellow ignition period the vehicles cannot pass the stop strip unless they are so close to each other when the yellow light comes on that they can no longer stop in sufficiently safe conditions; in this case they must promptly clear the intersection area with due caution.
During the red ignition period the vehicles must not exceed the stop strip; in the absence of such a strip the vehicles must not engage the intersection area, nor the pedestrian crossing, nor pass the signal, so as to be able to observe the indications.