Is it okay to post advertisements on the car? It is ok to put advertisements on the car body, as long as it does not exceed 30% of the car body, and it will not affect safe driving: 1. Car body advertisements without approval are illegal and legal only after registration, but advertisements can't be posted on the front, side and rear windshield of the car, which is easy to block the driver's sight and affect safe driving; 2. If advertisements are pasted on the windshield during vehicle inspection, they will be required to be removed; otherwise, if the vehicle inspection fails and advertisements are painted or pasted on the vehicle body, the vehicle body appearance change formalities must be handled at the vehicle management department as required; 3. Advertisements on the car body are only allowed to be posted on both sides of the car body except the window glass. Advertisements are not allowed to be posted on the front and rear windshield, front hood and trunk lid of an automobile, and the advertising area shall not exceed 30% of the body. @20 19