In which vehicles is the rear clearance lamp optional?
Lighting
In cabins with a frame, the use of the rear clearance light is optional because these structures can have a width between 1.80 meters and 2.10 meters, where the regulations allow choosing whether to install these lights.
Explanation
The **marker lights** are important to indicate the **total width** of a vehicle. These lights are placed on the outer edges and at the highest part of the vehicle to ensure visibility. They are mandatory for vehicles that are more than 2.10 meters wide, but they are **optional** for those measuring between 1.80 and 2.10 meters wide.
**Cabins with chassis** usually have a width that falls within this optional range, so in these cases, the installation of rear marker lights is not mandatory, but optional. This is what makes the correct answer "In cabins with chassis".
Select an answer
Keep going with more translated questions, explanations and full tests in the app.
