When sourcing carnival items, compliance is the most critical factor due to the variety of materials used. For the US market, products must comply with CPSIA (Consumer Product Safety Improvement Act), especially regarding lead and phthalate content in plastic toys or masks. For the EU market, items must bear the CE mark and comply with EN71 (Safety of Toys) standards, which cover mechanical properties, flammability, and chemical migration. Additionally, ensure that any wearable textiles meet flame retardancy standards (ISO 6941) to prevent fire hazards in crowded event settings.