From GAWDAwiki
PHMSA regulatory standards are part of a a risk management system that is prevention-oriented and focused on identifying a hazard and reducing the probability and quantity of a hazardous material release. Hazardous materials are categorized by hazard analysis and experience into hazard classes and packing groups. The regulations require each shipper to classify a material in accordance with these hazard classes and packing groups; the process of classifying a hazardous material is itself a form of hazard analysis. Further, the regulations require the shipper to communicate the material's hazards through use of the hazard class, packing group and proper shipping name on the shipping paper and the use of labels on packages and placards on the transport vehicle(s). Thus the shipping paper, labels and placards communicate the most significant findings of the shipper's hazard analysis. A hazardous material is assigned to one of three packing groups based upon its degree of hazard, from a high hazard packing group I to a low hazard packing group III material. The quality, damage resistance and performance standards of the packaging in each packing group are appropriate for the hazards of the material transported.[1]
References
- http://www.phmsa.dot.gov/resources/glossary
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