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A breif explanation of the 9 classes of dangerous goods, which are used to classify goods depending on their main dangerous property.
Hazard class 9 is defined simply at 49 CFR 173.140: For the purposes of this subchapter, miscellaneous hazardous material (Class 9) means a material which presents a hazard during transportation but which does not meet the definition of any other hazard class. This class includes:
The DOT has divided hazardous materials into nine different categories – commonly referred to as hazard classes – based on the level of potential hazard they pose. Title 49 of the United States Code of Federal Regulations (49 CFR) requires hazmat shippers to assign each hazardous material that is shipped to one of the DOT hazard class (es).
The United States Department of Transportation (DOT) requires hazmat workers transporting hazardous substances or waste, including those in class 9, to label and sort them correctly. You can find the hazmat classifications under Title 49 of the Code of Federal Regulations (49 CFR).
Hazard Class 9 – Miscellaneous hazardous materials. Miscellaneous Hazardous Materials are materials that present a hazard during transportation but do not meet the definitions of hazard classes 1 - 8. This includes:
Class 9 Miscellaneous Dangerous Goods are substances and articles which during transport present a danger or hazard not covered by other 8 classes.
What is a Class 9 Hazmat? A “class 9 hazmat” is the term the DOT (Department of Transportation) uses to categorize any hazardous materials that don’t fit into any of the other well-defined hazardous material categories, such as explosives, flammables, and corrosives. What is Included as an FMCSA Class 9 Hazmat?
Hazard Class 9: Miscellaneous Hazards. Definition. Chemicals which pose a hazard during transportation that is not one of the other eight hazard classifications. Specific class 9 Materials include: Dry Ice is a solidified gas which poses an asphyxiation risk when transported inside sealed vessels.
§ 173.140 Class 9—Definitions. For the purposes of this subchapter, miscellaneous hazardous material (Class 9) means a material which presents a hazard during transportation but which does not meet the definition of any other hazard class.
Hazardous Materials. Data you collect is used to calculate risk assessment, determine response methods, and develop regulations. Vehicles carrying hazardous materials are required to carry shipping papers containing the HM Class and ID number (or name).