If the Contracting Parties , in whose territory the traffic takes place do not agree to the contrary , The requirements of the European Agreement (AETR) of the International Road Traffic Crew shall not apply to international road haulage , 19> which are used :
Only for cargo transportation and whose maximum permissible mass , including the mass of trailers and semi-trailers , does not exceed 3 , 5 tons
For passengers only and who can not carry more than nine people including the driver due to their construction and equipment
For passenger transport only on regular lines , whose length does not exceed 50 km