本文件确定了下部系带锚具的定位区域、尺寸以及一般和静态强度要求。 根据ISO 13216-1，下部系带锚固可与座椅弯曲锚固一起使用，或与其他方法一起用于锚固道路车辆中的儿童约束系统（CRS）。 本文件适用于车辆制造商计划用于后向CRS的所有座位。这些座位可以包括后排座椅（第二排和第三排）以及前排乘客座椅的外侧和中间位置。 本文件还规定了改造下部系带锚固的要求和强度试验。

This document establishes the positioning zones, dimensions and general and static strength requirements for lower tether anchorages. Lower tether anchorages can be used together with seat bight anchorages according to ISO 13216-1, or with other methods for anchoring child restraint systems (CRS) in road vehicles. This document is applicable to all seating positions, intended by the vehicle manufacturer, for use with rearward-facing CRSs. These seating positions can include outer and mid positions in rear seats (second and third row), as well as the front passenger seat. This document also specifies requirements and strength testing of retrofit lower tether anchorages.