Column 3 is labeled hazard class or division and contains a
designation of the hazard class or division corresponding to
each proper shipping name, or the word “Forbidden.” Select
each of these buttons to learn more about the five types of
cases, and view an example of each.
The table contained in §173.2 lists the class numbers, division
numbers, class or division names and those sections of the
subchapter that contain definitions for classifying hazardous
materials, including forbidden materials. The normal entries
include those that contain a Class No. from 1 through 9 or a
Division No. 1.1 through 6.2.
- A material for which the entry in this column is forbidden may
not be offered for transportation or transported. This
prohibition does not apply if the material is diluted, stabilized
or incorporated in a device and it is classified in accordance
with the definitions of hazardous materials contained in Part
173 of the HMR.
- A material for which the entry in this column is “ORM-D”,
means a material such as a consumer commodity, which,
although otherwise subject to the regulations of Part 173,
presents a limited hazard during transportation due to its form,
quantity and packaging.
- When a reevaluation of the test data or new data indicates a
need to modify the forbidden designation or the hazard class
or packing group specified for a material specifically identified
in the Table, this data should be submitted to the Associate
Administrator for Hazardous Materials Safety for review and
approval.
- Later, we’ll talk about packaging. In some cases, an exception
in section 173.150 will allow you to reclassify a Class 3
(flammable) material, as a combustible liquid. A flammable
liquid with a flash point at or above 38°C or 100°F that does
not meet the definition of any other hazard class may be
reclassified as a combustible liquid. Some restrictions apply to
vessel and aircraft modes of transportation, and to bulk or
non-bulk packaging. Please see §173.150(e) and (f) for
additional details.
