&quot; 1.4. Coupling balls and towing devices shall be able to satisfy the tests given in Annex 6, paragraph 3.1. or paragraph 3.10. according to the choice of the manufacturer.
&quot; 1.4 Les boules d &apos; attelage et les barres d &apos; attelage doivent satisfaire aux essais prescrits au paragraphe 3.1 ou au paragraphe 3.10 de l &apos; annexe 6, au choix du fabricant.