What are the requirements for tire tread patterns during annual inspection?

[AlexaMarie]

Left and right tires must have the same tread patterns. In addition, the annual inspection also requires that tires must not be excessively worn, as excessively worn tires pose safety hazards. The details are as follows: 1. Specific requirements: The annual inspection has not abolished the requirement for uniform tire tread patterns. It mandates that all four tires must have consistent tread patterns or at least the same tread patterns on the same axle, meaning the front two tires can be the same and the rear two can be the same, but left and right tires cannot differ. 2. Hazards of inconsistent tread patterns: If left and right tires have different tread patterns, it will affect the smoothness of the vehicle's movement. During emergency braking, it may cause unilateral skidding or fishtailing, posing driving safety hazards and resulting in failure of the annual inspection.