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Specification packaging
['General Packaging Requirements - Hazmat']

- The HMR requires manufacturers to mark all authorized packagings as manufactured and tested in accordance with regulations.
Specification packagings are cylinders, portable tanks, cargo tanks, and tank car tanks for which the Department of Transportation (DOT) has issued detailed manufacturing specifications.
Manufacturers must mark all authorized packagings as required by Parts 178 and 179 of the Hazardous Materials Regulations (HMR). The marking is the manufacturer’s certification that the packaging has been manufactured and tested in accordance with Parts 178 and 179.