There was not any demand for the earlier tyre and the time scale in which retreaded tyres to the higher service description became available from the new tyre manufacturer's retreading plants indicated to the industry that the earlier version tyre was being upgraded. However, attempts to substantiate this using the procedure quoted in paragraph 6.4.9. of Regulation No. 109 were unsuccessful, and the retreading industry, outside of the original new tyre manufacturer, was unable to obtain the information to convince the type approval authorities that they could also upgrade the service description of a particular tyre.
Toutefois, les efforts consentis pour le démontrer suivant la procédure décrite au paragraphe 6.4.9 du Règlement no 109 ont été vains et les usines de rechapage, autres que celles du fabricant du nouveau pneumatique, n'ont pas pu obtenir les informations nécessaires pour convaincre les autorités chargées de l'homologation qu'elles pouvaient elles aussi reclasser la description de service du pneumatique considéré.