Rialzoo is a product tested TÜV Italia according the regulation UNI EN 16120:2012.
The standard specifies safety requirements and test methods for booster seat intended to be attached to an adult chair to raise the height of a seat. The booster seat is for children who are able to stay sat on their own whose age is not older than 36 months and whose weight is not more than 15 kg.
Rialzoo (U.S. Version) is a product tested Intertek according the regulation ASTM F2640-18.