What color must the marker lights installed on a truck be by regulation?

Question

DentroTest · Accepted Answer

The marker light is intended to clearly indicate the overall width of the vehicle to other road users. It is mandatory on vehicles more than 2.10 meters wide and optional between 1.80 and 2.10 meters. According to the General Vehicle Regulations (Annex X), it must emit white light to the front and red to the rear. Amber is not the color of marker lights: it is reserved for direction indicators and side position lights. And red at the front and white at the rear reverses the regulatory colors, which contradicts the rule.

What color must the marker lights installed on a truck be by regulation?

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