ISO 29061-3:2026

Road vehicles — Methods and criteria for usability evaluation of child restraint systems and their interface with vehicle anchorage systems — Part 3: Installation of child restraint systems using vehicle seat belts ISO 29061-3:2026

Publication date:   Feb 6, 2026

Scope

This document specifies the criteria for judgement of usability of child restraint systems (CRSs) when installing them with vehicle seat belts.
This document provides criteria for judgement of:

ease of availability of instructions;
clarity of instruction manual and labelling; and
ease of use of design related features of the CRS related to the installation in a vehicle.

NOTE 1        CRS includes enhanced child restraint systems (ECRS) according to UN Regulation No. 129.
NOTE 2        This procedure can also be used for evaluation of vehicle integrated CRS.
NOTE 3        Booster system usability evaluation is covered by ISO 29061-5.