To ensure market access and consumer safety, verify that suppliers comply with OEKO-TEX® Standard 100, which guarantees the absence of harmful substances. For the US market, ensure compliance with CPSIA (especially for lead content in buttons) and FTC labeling requirements (fiber content and care instructions). For the EU, adherence to REACH regulations is mandatory. If sourcing sustainable products, look for GOTS (Global Organic Textile Standard) or GRS (Global Recycled Standard) certifications.