ISO PAS 11154:2006 specifies the minimum safety requirements for all roof load carriers intended for mounting on or above the roofs of passenger cars and light commercial vehicles with a maximum authorized total mass up to 3,5 t (ISO M08) as defined in ISO 1176. It applies to: mechanically attached general-use roof bars suitable for carrying load,accessories and their attachments to roof bars for special purpose applications,mechanically attached specific purpose roof devices suitable for carrying a defined load,magnetic fixing devices suitable for carrying a defined load.