How many years does it take for a sedan to require two inspections per year?

[ArthurLee]

Sedans generally require two inspections per year after 15 years. The annual inspection requirements for vehicles vary depending on their age. According to Article 16 of the "Regulations for the Implementation of the Road Traffic Safety Law," motor vehicles must undergo safety technical inspections within the following periods from the date of registration: 1. Passenger vehicles for commercial use must be inspected once a year within the first 5 years, and every 6 months for vehicles older than 5 years; 2. Trucks and large or medium-sized non-commercial passenger vehicles must be inspected once a year within the first 10 years, and every 6 months for vehicles older than 10 years; 3. Small and mini non-commercial passenger vehicles must be inspected once every 2 years within the first 6 years, once a year for vehicles older than 6 years, and every 6 months for vehicles older than 15 years.