Group Age Weight Groups Size class / Fixing
Group 0 Indicatively up to 9 months up to 10 kg ISO/L1
ISO/L2
ISO/R1
Group 0+ Indicatively up to 2 years up to 13 kg ISO/R1
ISO/R2
ISO/R3
Group 1 Indicatively from 8 months to 4 years 9-18 kg ISO/R2
ISO/R3
ISO/F2
ISO/F2X
ISO/F3
Group 2 Indicatively from 3 to 7 years 15-25 kg —
Group 3 Indicatively from 6 to 12 years 22-36 kg —
214 SAFETY
In Europe, children restraint systems are defined by regulation ECE-R44, which divides them into five weight groups: