CONVENTION ON ROAD TRAFFIC
The Contracting Parties, desiring to facilitate international road traffic and to increase road safety through the adoption of uniform traffic rules, have agreed upon the following provisions:
Chapter III
CONDITIONS FOR THE ADMISSION OF MOTOR VEHICLES AND TRAILERS TO INTERNATIONAL TRAFFIC
ARTICLE 36
Registration number
1. Every motor vehicle in international traffic shall display its registration number at the front and at the rear; motor cycles, however, shall only be required to display this number at the rear.
2. Every registered trailer in international traffic shall display its registration number at the rear. Where a motor vehicle draws one or more trailers, the sole trailer or the last trailer, if not registered, shall display the registration number of the drawing vehicle.
3. The composition of the registration number referred to in this Article, and the manner of displaying it, shall conform to the provisions of Annex 2 to this Convention.