ISOFIX and i-SIZE

What is ISOFIX and I-SIZE?

What is ISOFIX?

ISOFIX is the international standard of built-in attachment points in a car’s structure to fit a child seat. A child seat can easily be plugged into the ISOFIX system which greatly reduces the risk of fitting the seat incorrectly.

Many new vehicles have ISOFIX points built in when they are manufactured, and child seat manufacturers are more commonly producing child seats that suit the ISOFIX system.

Further information on ISOFIX can be viewed under 'Buying a child car seat'

 

What is i-SIZE?

i-Size is a European standard – Regulation 129 – which was introduced in Ireland in September 2014. The key benefits of i-Size-standard seats are that they can be fitted to most ISOFIX systems and they provide increased support for the child’s head and neck. They also provide better side-impact protection in the event of collisions. An i-Size seat also allows your child to stay rear-facing for much longer (up to 15 months in a rearward-facing baby seat). The categorisation of these seats is based on height and size rather than height and weight.

Both i-Size (Regulation 129) and Regulation R4403/04 (referred to earlier in the Law section) are both legal for use and will run alongside each other until the R4403/04 is phased out. However, this is expected to take several years to complete.

Further information on i-SIZE can be viewed under 'Buying a child car seat' .