A good query! To ensure that they meet or exceed requirements set by local, national, and international safety regulations, every one of our production runs is examined by independent, globally renowned testing companies for safety and quality assurance (primarily Intertek Group plc and UL Verification) (e.g., ASTM Toy Safety Specifications, US CSPC Regulations, California Prop 65, Canada Product Safety Act, and many others). These tests include flammability tests as required by different federal standards, physical and mechanical evaluations to assure general safety, and chemical composition studies to ensure compliance. This also includes actions like metal detection and "pull" testing to guarantee that all components are safe and secure. To guarantee adherence to internal quality and safety requirements, individual shipments from our manufacturing facilities additionally go through further Quality Assurance testing by a different testing company. These Squishables have been rigorously tested!