How early can a vehicle with semi-annual inspection be inspected in advance?

[LaLucille]

Vehicles requiring inspection every six months can also undergo annual inspection up to 90 days in advance. China's Road Traffic Safety Law clearly stipulates in its vehicle inspection regulations that annual vehicle inspections can be conducted on any working day within 90 days prior to the deadline. Whether it's biennial inspection, annual inspection, or semi-annual inspection, all are permitted to be conducted up to 90 days in advance. The first annual inspection for passenger cars is conducted when the vehicle reaches six years of age. Non-operational small and micro passenger vehicles, including family cars over 6 years but under 10 years old, require biennial inspection. For vehicles exactly six years old, the owner needs to drive the vehicle to the inspection station with ID card, vehicle license, vessel tax or tax exemption certificate, and compulsory traffic insurance policy for vehicle testing. After passing the inspection, a certification form will be issued, which along with the carried documents should be presented at the relevant window to obtain the annual inspection sticker.