Which statement accurately reflects Smog Check exemptions among older vehicles?

• A. 1997 and older diesel vehicles, 2-cylinder vehicles, and 1975 and older vehicles are exempt, with rotary powered vehicles treated specially.
• B. All diesel vehicles are exempt.
• C. Only rotary powered cars are exempt.
• D. There are no exemptions.

Answer: (A)

Smog exemptions exist for vehicles that are either very old or have engine designs that don’t fit the standard testing approach. The statement reflects the actual exemptions: diesel-powered vehicles up to 1997 are exempt, as are 2-cylinder engines, and vehicles built in 1975 or earlier. Rotary-powered vehicles have their own special handling because their emissions characteristics and testing methods differ from typical piston engines, so they’re not subject to the same standard rules. In contrast, the other options are not accurate because not all diesel vehicles are exempt (only older ones), exemptions are not limited to rotary engines alone, and there are indeed exemptions for older vehicles.