According to MPS Order No. 162, when must a driver holding an A1, A3, or B1 passenger vehicle driving license undergo the mandatory annual license verification (审验)?

1. Every 6 months regardless of whether penalty points were recorded
2. Only once every 6 years upon the expiration and renewal of the driving license
3. Immediately within 24 hours of receiving any single traffic ticket
4. Within 30 days after the end of the scoring cycle if any penalty points were accumulated during that cycle