UNECE Regulation No. 129 - Increasing the safety of children in vehicles
The new UN Regulation No. 129, also known as “i-Size Regulation”, has been
developed in order to better address issues such as the one described above.
It has been developed by the Working Party on Passive Safety (GRSP), a subsidiary
body of the World Forum for Harmonization of Vehicle Regulations (WP.29)
of the United Nations Economic Commission for Europe (UNECE), with the aim of enhancing child safety in Europe. The development of the technical contents of
the UN Regulation has been dealt with by an Informal Working Group of GRSP, led
by France, gathering experts from ministries of transport, research institutions,
technical services, consumer testing and industry.
After the adoption of the new UN Regulation No. 129 (i-Size) by UNECE/WP.29,
annexed to the 1958 Agreement in November 2012, and coming into force on
9 July 2013, Contracting Parties of the 1958 Agreement and Non-Governmental
Organizations (NGOs) addressed journalists, professionals, manufacturers of CRSs
and consumers/parents to provide more information.
The phases, including the current state, of the “i-Size” UN Regulation are:
• Phase 1 (i-Size): Integral harness ISOFIX (CRS for younger children, ISOFIX
attached) – Finalised and adopted by WP.29 in November 2012, came into
force on 9 July 2013.
• Phase 2: Non-integral CRS (booster seats [and booster cushions]) (CRS for
older children) – Under development.
• Phase 3: Belted integral harness CRS – is still an open cogitation and under
Since the new “i-Size” does not permit forward – facing transport before 15 months,
if parents buy the new “i-Size” seat as of summer 2013, they will use it until their
child is at least 15 months old in the rearward facing position.