Decals on the exterior of a car generally do not require registration, but large-scale body advertisements do. Car decals, an earlier colloquial term now referred to as car stickers, originated from motorsports. Precautions for Car Decals: The ideal working environment for applying decals is between 15°C and 30°C. High temperatures can cause the film to expand and the wet solution to evaporate quickly, while low temperatures can affect the flexibility of the film, thereby impacting adhesion. Thoroughly clean the car's surface with water and a neutral cleaner. To ensure proper application of the decal, the car's surface must be free of dust, wax, and other contaminants. Car decals consist of three layers: the backing paper (white glassine paper), the PVC decal itself, and the transfer film with protective film (transparent). The top protective film should be removed only after the final application. During the process, avoid pulling the decal forcefully to prevent stretching and deformation. Points to Note for Vehicle Modifications: First, technical parameters such as the car's displacement must never be modified privately. For example, some people exploit loopholes by purchasing new cars with smaller displacements that have lower purchase taxes and then privately upgrade the displacement significantly. This is not only a serious legal violation but also poses significant safety hazards. Second, widening tires, modifying the intake system, or exhaust system is also prohibited. These modifications can alter the vehicle's performance and severely affect driving safety. If discovered, fines will be imposed, and the vehicle must be restored to its original condition. Third, for non-professional off-road competition vehicles, modifications that enhance off-road performance, such as raising the chassis, are not allowed.
