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|N.O.S. - Not Otherwise Specified|
Get Title 49 of the US Federal Code, Transportation, in searchable hypertext PDF format on CD-ROM from Safety Emporium.
DOT regulations require that a Proper Shipping Name (PSN) be used when labeling shipments of hazardous materials. In many instances, these will be generic (broad classes of) names such as "poisonous liquid, n.o.s."; see below for specific examples.
N.O.S. is used when the a chemical's name does not specifically appear in the HMT. For example, while ethanol appears in the table and has a proper shipping name of Ethyl Alcohol or Ethanol, an alcohol that is not listed specifically in the table will be described as "Alcohol, n.o.s" or "Flammable liquid, n.o.s".
See the links under Further Reading below for how to comply with the DOT HazMat shipping regulations, including the selection of the proper shipping name(s).
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