Which vehicles are exempt from a Smog Check Inspection?

Which vehicles are exempt from a Smog Check Inspection?

• A. 1997 and older diesel vehicles, 2-cylinder vehicles, and 1975 and older vehicles, except rotary powered vehicles.
• B. New electric vehicles only.
• C. All vehicles under 20 years old.
• D. Gasoline vehicles only.

Answer: (A)

In California, Smog Check exemptions are based on vehicle age and engine type, not on energy source alone. The correct exemptions are vehicles that are quite old or use a very small engine: diesel-powered vehicles from 1997 and older, vehicles with only two cylinders, and vehicles from 1975 and older. The parenthetical note about rotary-powered vehicles means those rotary (Wankel) engines do not receive the exemption and still require testing. This set of categories matches the official exemptions, which is why it’s the best choice. The other options don’t fit because the exemption isn’t limited to new electric vehicles, isn’t simply “all vehicles under 20 years old,” and isn’t restricted to gasoline-powered cars only—older diesels and 2-cylinder engines are exempt too, while rotary engines are not.

In California, Smog Check exemptions are based on vehicle age and engine type, not on energy source alone. The correct exemptions are vehicles that are quite old or use a very small engine: diesel-powered vehicles from 1997 and older, vehicles with only two cylinders, and vehicles from 1975 and older. The parenthetical note about rotary-powered vehicles means those rotary (Wankel) engines do not receive the exemption and still require testing. This set of categories matches the official exemptions, which is why it’s the best choice.

The other options don’t fit because the exemption isn’t limited to new electric vehicles, isn’t simply “all vehicles under 20 years old,” and isn’t restricted to gasoline-powered cars only—older diesels and 2-cylinder engines are exempt too, while rotary engines are not.