The mandatory fitment of Driver Drowsiness and Attention Warning (DDAW) systems is one of the new safety features mandated by EU Regulation 2019/2144 on "the type approval requirements of motor vehicles and their trailers, and systems, components and separate technical units intended for such vehicles, as regards their general safety and the protection of vehicle occupants and vulnerable road users", more commonly referred to as General Safety Regulation 2 or GSR 2. Driver Drowsiness and Attention Warning (DDAW) systems are defined in (EU) 2019/2144 as systems that "assess the driver's alertness though vehicle systems analysis and warn the driver if needed". From July 6, 2022, the fitment of DDAW systems becomes mandatory for all new types of M and N category vehicle (i.e. all passenger carrying and all goods carrying motor vehicles) and, from July 7, 2024, the fitment of such systems will become mandatory for all new vehicles falling into those categories.