Since dominoes are classified as toys or game sets, they must adhere to strict safety regulations. For the US market, ASTM F963 and CPSIA compliance is mandatory, specifically regarding lead content and phthalates in the paint used for the pips (dots). For the EU, products must carry the CE mark and comply with EN71 Parts 1, 2, and 3. If the set includes a wooden box, ensure the supplier provides a FSC certification for sustainable forestry and, if necessary, fumigation certificates for customs clearance.