
If the area of vehicle decals does not exceed 30% of the entire vehicle, traffic police will not check, and there will be no issues during annual inspections. Even if the decal area exceeds 30% of the entire vehicle, as long as you register with the vehicle management department, you can still use it normally. Additional information: Below are the relevant regulations regarding vehicle decals: 1. Special vehicle colors cannot be used: Colors such as fire engine red, engineering rescue yellow, and the upper white and lower blue combination for national administrative law enforcement are reserved for special vehicles and cannot be used on ordinary vehicles. 2. Proper use of logos and advertisements: Any logos or advertisements sprayed or pasted on the vehicle must not affect safe driving.

As a young person who drives frequently, I understand that traffic police do check car decals. Last year, I put a large decal on the rear of my car and was pulled over at an intersection. The traffic police said the decal partially obscured the license plate number, violating traffic rules, and fined me several hundred yuan on the spot. Since then, I’ve made a point to learn the regulations: decals shouldn’t be too exaggerated—for example, they shouldn’t cover the license plate or obstruct the view through the windows, otherwise, you’ll be checked. Small decals on the doors or trunk are generally overlooked, but full-body decals that change the color too much require registration with the vehicle management office. Safe driving comes first—decals may look good, but if you go overboard, the traffic police won’t go easy. I suggest everyone check the size and placement before applying decals.

Having worked in this field for over twenty years, I've often seen traffic police pull over cars for decals turning minor issues into major problems. Regulations clearly state that car decals must not exceed 30% of the vehicle's surface area or alter the original color, otherwise fines and demerit points will be issued. Personally, I only use small decorative stickers on my car, carefully placed away from the front and rear windows as well as the license plate. To avoid being stopped, it's best to use ordinary stickers, avoiding reflective or flashy materials, and refrain from using advertising slogans. The key point is not to compromise safety: if rearview mirrors are obstructed or license plates become unreadable, traffic police will definitely intervene. Always pay attention to these details while driving, prioritizing safety above all.

Car owners concerned about safety must understand that traffic police inspect decals to protect everyone's driving safety. Improper decals, such as those affixed to the windshield, can obstruct the driver's view or cause glare interference at night. Regulations strictly prohibit such behaviors to prevent accidents. Personal experience tells me that decals should only be applied to stable parts of the car body, like the inner side of the doors, and avoid flashy coverage. If any potential hazards from decals are found, remove or adjust them promptly; mishandling small issues can lead to major disasters.


