How often should a commercial passenger vehicle over 5 years old be inspected?

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Commercial passenger vehicles that have been registered for more than 5 years must undergo inspection every 6 months. Here is relevant information: Annual inspection meaning: Vehicle annual inspection refers to a mandatory test for all vehicles that have obtained official license plates and registration certificates, equivalent to an annual physical examination for vehicles according to the "Technical Conditions for Motor Vehicle Operation Safety." Exemption policy: Non-commercial small private passenger vehicles with 7 seats or fewer (including 7 seats) are exempt from on-site inspection for 6 years, meaning the vehicle does not need to undergo physical inspection. However, the owner must still pass an exhaust emission test within the specified period (usually 2 years) and apply for an inspection compliance mark at the vehicle management office, motor vehicle registration service station, or traffic police squadron, which must then be affixed to the upper right corner of the vehicle's front windshield.