Helmet certification standards are a set of guidelines and requirements that helmets must meet to be considered safe and effective for their intended use. Various organizations and regulatory bodies establish these standards worldwide. Here are some commonly recognized helmet certification standards: DOT (Department of Transportation) ECE (Economic Commission for Europe) AU/NZS (Australia and New Zealand) ASTM (American Society for Testing and Materials) CPSC (Consumer Product Safety Commission) NTA (Nederlandse Technische Afspraak) Virginia Tech Helmet Testing