From what width is it mandatory for a bus to have marker lights installed and to use them?

Question

DentroTest · Accepted Answer

According to traffic regulations and the General Vehicle Regulations, the function of marker lights is to clearly indicate the overall width of certain vehicles. Their installation and use are mandatory for all vehicles intended for the transport of goods or persons that are wider than 2.10 meters (with two white lights at the front and two red lights at the rear, located at the highest possible upper extremities). For vehicles between 1.80 and 2.10 meters wide, their use and installation are optional, so it is not correct to say that all buses must have them or that they are required from 1.80 meters.

From what width is it mandatory for a bus to have marker lights installed and to use them?

Want to pass the Permit D and D1 (English) theory test first time?