When sourcing children's fabrics, compliance is non-negotiable. You must ensure products meet OEKO-TEX® Standard 100 (Class I), which is the strictest category specifically for babies and toddlers. For the U.S. market, fabrics must comply with CPSIA (Consumer Product Safety Improvement Act) regarding lead and phthalate content. In the EU, adherence to REACH regulations and EN 71-3 (safety of toys/migration of certain elements) is essential to ensure the fabric is free from harmful azo dyes and heavy metals.