CA: Seller responsible that vehicle pass smog and any late fees if tags are expired.
'Course, there's one FTE member that didn't learn from a past experience, just bought a 12 year old econo-box with expired tags, cost him almost 400 bucks to register it.
Has another vehicle bought 4 years ago with expired tags, cannot afford to register it, cuz late weight and penalty fees are now over 2 grand!
Despite being told multiple times, info went in one ear and came out the other. You can lead a mule to water, but you cannot make it drink.