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 39
Technical requirements and inspection of vehicles
1. Every motor vehicle, every trailer and every combination of vehicles in international traffic shall satisfy the provisions of Annex 5 to this Convention. It shall also be in good working order.
2. Domestic legislation shall require periodic technical inspections of:
(a) Motor vehicles used for the carriage of persons and having more than eight seats in addition to the driver's seat;
(b) Motor vehicles used for the carriage of goods whose permissible maximum mass exceeds 3,500 kg and trailers designed to be coupled to such vehicles.
3. Domestic legislation shall, as far as possible, extend the provision of paragraph 2 to the other categories of vehicles.