Which vehicle type listed does not require a smog check inspection?

Solely electric vehicles do not require a smog check inspection because they do not produce exhaust emissions that are typically evaluated during a smog check. Smog checks are designed to assess the emissions produced by vehicles powered by internal combustion engines, which include gasoline and natural gas vehicles. Since electric vehicles operate solely on electricity and do not emit harmful pollutants during operation, they are exempt from this requirement. This exemption is part of efforts to encourage the use of cleaner transportation options and reduce overall vehicle emissions in the environment.

In contrast, propane vehicles, naturally gas vehicles, and gasoline vehicles all rely on combustion processes that generate various exhaust emissions, making them subject to smog check inspections to ensure compliance with environmental standards.