What are the inspection period regulations for diesel vehicles?

[ChaseRose]

For diesel vehicles within the first 6 years of registration, they are exempt from physical inspection twice (inspection marks must be applied for every two years without requiring on-site vehicle testing). At the 6th and 8th year, the vehicle must undergo on-site inspection. For private vehicles over 10 years old, the original inspection cycle still applies: annual inspection for vehicles aged 10-15 years, and semi-annual inspection for vehicles over 15 years old. Below are relevant details: 1. New inspection rules: The updated regulations now include 7-9 seat non-commercial mini/micro buses (excluding minivans) within the 6-year exemption period. For non-commercial mini/micro buses (excluding minivans) aged 6-10 years, the inspection frequency changes from annual to biennial. 2. Regulations: Article 16 of the Implementation Regulations of the Road Traffic Safety Law stipulates: commercial passenger vehicles must be inspected annually within 5 years of registration, then semi-annually thereafter; trucks and large/medium non-commercial passenger vehicles must be inspected annually within 10 years of registration, then semi-annually thereafter.