Artikel 3

For the provisions of this Convention to become applicable:
a) the transport operation must be performed (i) by means of road vehicles, combinations of vehicles or containers previously approved under the conditions set forth in Chapter III a), or
(ii) by means of other road vehicles, other combinations of vehicles or other containers under the conditions set forth in Chapter III c), or
(iii) by road vehicles or special vehicles such as buses, cranes, sweepers, concretelaying machines, etc. exported and therefore themselves considered as goods travelling by their own means from a Customs office of departure to a Customs office of destination under the conditions set forth in Chapter III c). In case such vehicles are carrying other goods, the conditions as referred to under (i) or (ii) above shall apply accordingly;
(i) by means of road vehicles, combinations of vehicles or containers previously approved under the conditions set forth in Chapter III a), or
(ii) by means of other road vehicles, other combinations of vehicles or other containers under the conditions set forth in Chapter III c), or
(iii) by road vehicles or special vehicles such as buses, cranes, sweepers, concretelaying machines, etc. exported and therefore themselves considered as goods travelling by their own means from a Customs office of departure to a Customs office of destination under the conditions set forth in Chapter III c). In case such vehicles are carrying other goods, the conditions as referred to under (i) or (ii) above shall apply accordingly;
b) the transport operations must be guaranteed by associations authorized in accordance with the provisions of Article 6. They must be performed under cover of a TIR Carnet, which shall conform to the model reproduced in Annex 1 to this Convention or be carried out by the eTIR procedure.