Class 9 – Miscellaneous Dangerous Substances Class 9 substances and articles (miscellaneous dangerous substances and articles) are substances and articles which, during transport present a danger not covered by other classes. Class 9 also includes genetically modified micro-organisms (GMMOs) and genetically modified organisms (GMOs) are micro-organisms and organisms in which genetic material has been purposely … Continue reading Class 9 – Miscellaneous Dangerous Substances