You must notify the DMV within five days if you:

  1. Sell or transfer your vehicle. ✓
  2. Fail a smog test.
  3. Get a new prescription for lenses or contacts.

Answer: A. Sell or transfer your vehicle.

You must notify the DMV within five days when you sell or transfer your vehicle.

Why this is the answer

The handbook's registration section says that after selling a vehicle, the seller must tell the DMV within five days by filing a Notice of Transfer and Release of Liability. That is the only five-day notification rule described in the passage. Failing a smog test and getting a new lens or contact prescription are not listed there as events requiring this notice.

Why the other answers are wrong

Remember it

Think sale, not smog or spectacles: a sold vehicle triggers the five-day notice.

Official handbook: California Driver Handbook (DL 600), Section 11: Vehicle Registration Requirements, p. 79

Explanation drafted with AI (deepseek-flash) from the official handbook passage cited above, then checked automatically and by a second model on 2026-10-23. Always confirm with the official handbook.