UN-R44
UN-R129 (i-Size child restraint systems)
Information about the approval category, weight category and approval number, for example, is on the approval label on the child restraint system.
There may be further information such as the ISOFIX size categories, depending on the approval category of the child restraint system.
Approval categories in accordance with UN-R44
Universal: child restraint systems in the "Universal" category are approved for installation in vehicles. They can be used, in accordance with overviews of the suitability of seats for securing child restraint systems, on seats labelled U, UF or IUF.
The identification IUF refers to ISOFIX child restraint systems in the "Universal" category. These child restraint systems must also be secured using Top Tether or support points.
Semi-Universal: child restraint systems in the "Semi-Universal" category may only be used if the vehicle and vehicle seat are listed in the child restraint system manufacturer's vehicle model list.
Vehicle-specific: child restraint systems in the "vehicle-specific" category may only be used if the vehicle and vehicle seat are listed in the child restraint system manufacturer's vehicle model list.
Approval categories in accordance with UN-R129
i‑Size: child restraint systems in the "i‑Size" category are approved for installation in vehicles with i‑Size mounting brackets. They can be used, in accordance with overviews of the suitability of seats for securing child restraint systems, on seats labelled i‑U.
The identification i‑U refers to i‑Size child restraint systems in the "Universal" category. These child restraint systems must also be secured using Top Tether or support points.