Smart clothing sits at the intersection of textiles and electronics, requiring dual certification. For the US market, FCC certification is mandatory for wireless components, alongside CPSIA compliance for lead and phthalate content. For the EU, products must carry the CE mark, complying with the Radio Equipment Directive (RED) and RoHS for hazardous substances. If the garment tracks health data, ensure the manufacturer follows GDPR (EU) or HIPAA (US) guidelines regarding data privacy and encryption.