B2B buyers must ensure compliance with international food safety standards. Key certifications include ISO 22000 or FSSC 22000 for food safety management. For the US market, FDA registration and FSMA compliance are mandatory. For the EU, adhere to EFSA regulations regarding pesticide residues and heavy metals. Crucially, if marketing as 'Gluten-Free,' the product must meet the GFCO standard (less than 10ppm gluten), which requires strict cross-contamination controls during harvesting and milling.