How often do passenger cars need annual inspection?

[Barros]

After the implementation of the new vehicle inspection regulations, passenger cars between 6 and 10 years old require inspection every 2 years. Below are relevant details about annual inspections: 1. Detailed inspection rules for small passenger cars: Inspection every 2 years for vehicles under 6 years old; annual inspection for vehicles over 6 years old; twice-yearly inspection for vehicles over 15 years old. 2. Introduction to vehicle inspection: Vehicle inspection refers to mandatory testing for all vehicles that have obtained official license plates and registration certificates. It's equivalent to an annual physical examination for vehicles according to the "Technical Conditions for Motor Vehicle Operation Safety," aiming to promptly eliminate potential safety hazards, encourage enhanced vehicle maintenance, and reduce traffic accidents. This is commonly referred to as vehicle inspection or annual review.