Compliance is non-negotiable in cross-border trade. For the EU market, products must comply with REACH regulations, specifically limiting lead, cadmium, and phthalates. For the US market, adherence to ASTM standards and the CPSIA (Consumer Product Safety Improvement Act) is mandatory, especially for children's footwear. Additionally, look for California Proposition 65 compliance to avoid legal risks regarding chemical exposure. Always request third-party lab test reports (SGS, TUV, or ITS) from your supplier before finalizing the order.