What does it mean to apply for an inspection exemption decal for exempt vehicles?

[VanJourney]

Applying for an inspection exemption decal for exempt vehicles means that vehicle models eligible for the 6-year exemption can apply for the exemption decal. Vehicles with the exemption decal only need to undergo an annual review every two years. The 6-year exemption means the vehicle is exempt from on-site inspection, but the owner still needs to apply for the inspection compliance decal at the designated time from the vehicle management office, motor vehicle registration service station, or traffic police squadron, and affix it to the upper right corner of the vehicle's front windshield. Vehicle inspections can be categorized based on the vehicle's age: vehicles under 6 years old require inspection every two years; vehicles over 6 years but under 15 years old require annual inspection; vehicles over 15 years old require inspection every six months, as older vehicles tend to have poorer performance, and increased inspection frequency helps reduce safety hazards.