ISO 29061-1:2026

Road vehicles — Methods and criteria for usability evaluation of child restraint systems and their interface with vehicle anchorage systems — Part 1: Vehicles and child restraint systems equipped with ISOFIX anchorages and attachments ISO 29061-1:2026

Publication date:   Feb 6, 2026

Scope

This document provides criteria for judgement of usability of child restraint systems (CRSs) with ISOFIX attachments and their corresponding anchorage systems in vehicles.
This document provides criteria for a separate evaluation of the CRS ISOFIX attachments, of the ISOFIX anchorage installation in vehicles, and an evaluation of the interface issues when installing a CRS in a certain vehicle.
This document covers both rigid and flexible attachments of the CRS to the vehicle ISOFIX anchorages.
NOTE 1        CRS includes enhanced child restraint system (ECRS) according to UN Regulation No. 129.
NOTE 2        Although ISOFIX is defined in the original “ISOFIX” standard (ISO 13216-1) to be a rigid system, the term “ISOFIX” in this document is extended to include flexible CRS attachments (e.g. LATCH in USA, UAS in Canada).