What are the laws about vehicle modifications?

In California, there are laws governing the types of modifications that can be made to a vehicle. Generally, these rules are in place to ensure the safety of the driver, passengers, and other drivers on the road. Vehicle modifications must not interfere with the car’s emissions, performance, or safety systems and must comply with the Federal Motor Vehicle Safety Standards (FMVSS). The California Air Resources Board (CARB) has set stringent regulations for any changes to a vehicle’s engine, exhaust system, or other components that affect emissions. All modifications must be registered with the CARB, and the vehicle must pass smog tests to make sure that it meets the standards. Certain modifications such as adding a lift kit must use approved parts from manufacturers that have been approved by the Department of Motor Vehicles (DMV). There are also restrictions on the size of the tires, and they must not exceed the manufacturer’s specifications or the state’s legal limit. In addition, the owner must be sure that all the lights on the vehicle, including headlights, brake lights, and turn signals, are functioning properly and in compliance with the state’s laws. It is also illegal to tint the windows, and any modifications to the vehicle’s windows must be approved by the DMV. In California, vehicle modifications must meet the standards set by the CARB and DMV in order to ensure the safety of drivers on the road. It is important to check with the DMV or a qualified mechanic before making any modifications to a vehicle.

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