152 

49 CFR Ch. I (10–1–18 Edition) 

§ 172.101 

according to their application, such as 
‘‘Coating solution’’ or ‘‘Extracts, fla-
voring, liquid’’, rather than by an n.o.s. 
entry, such as ‘‘Flammable liquid, 
n.o.s.’’ It should be noted, however, 
that an n.o.s. description as a proper 
shipping name may not provide suffi-
cient information for shipping papers 
and package markings. Under the pro-
visions of subparts C and D of this part, 
the technical name of one or more con-
stituents which makes the product a 
hazardous material may be required in 
association with the proper shipping 
name. 

(iii) 

Multiple hazard materials. 

If a ma-

terial meets the definition of more 
than one hazard class, and is not iden-
tified in the Table specifically by name 
(e.g., acetyl chloride), the hazard class 
of the material shall be determined by 
using the precedence specified in 
§ 173.2a of this subchapter, and an ap-
propriate shipping description (e.g., 
‘‘Flammable liquid, corrosive n.o.s.’’) 
shall be selected as described in para-
graph (c)(12)(ii) of this section. 

(iv) If it is specifically determined 

that a material is not a forbidden ma-
terial and does not meet the definition 
of any hazard class, the material is not 
a hazardous material. 

(13) 

Self-reactive materials and organic 

peroxides. 

A generic proper shipping 

name for a self-reactive material or an 
organic peroxide, as listed in Column 2 
of the Table, must be selected based on 
the material’s technical name and con-
centration, in accordance with the pro-
visions of § 173.224 or § 173.225 of this 
subchapter, respectively. 

(14) A proper shipping name that de-

scribes all isomers of a material may 
be used to identify any isomer of that 
material if the isomer meets criteria 
for the same hazard class or division, 
subsidiary risk(s) and packing group, 
unless the isomer is specifically identi-
fied in the Table. 

(15) Unless a hydrate is specifically 

listed in the Table, a proper shipping 
name for the equivalent anhydrous 
substance may be used, if the hydrate 
meets the same hazard class or divi-
sion, subsidiary risk(s) and packing 
group. 

(16) Unless it is already included in 

the proper shipping name in the 
§ 172.101 Table, the qualifying words 

‘‘liquid’’ or ‘‘solid’’ may be added in as-
sociation with the proper shipping 
name when a hazardous material spe-
cifically listed by name in the § 172.101 
Table may, due to the differing phys-
ical states of the various isomers of the 
material, be either a liquid or a solid 
(for example ‘‘Dinitrotoluenes, liquid’’ 
and ‘‘Dinitrotoluenes, solid’’). Use of 
the words ‘‘liquid’’ or ‘‘solid’’ is subject 
to the limitations specified for the use 
of the words ‘‘mixture’’ or ‘‘solution’’ 
in paragraph (c)(10) of this section. The 
qualifying word ‘‘molten’’ may be 
added in association with the proper 
shipping name when a hazardous mate-
rial, which is a solid in accordance 
with the definition in § 171.8 of this sub-
chapter, is offered for transportation in 
the molten state (for example, 
‘‘Alkylphenols, solid, n.o.s., molten’’). 

(d) 

Column 3: Hazard class or Division. 

Column 3 contains a designation of the 
hazard class or division corresponding 
to each proper shipping name, or the 
word ‘‘Forbidden’’. 

(1) A material for which the entry in 

this column is ‘‘Forbidden’’ may not be 
offered for transportation or trans-
ported. This prohibition does not apply 
if the material is diluted, stabilized or 
incorporated in a device and it is 
classed in accordance with the defini-
tions of hazardous materials contained 
in part 173 of this subchapter. 

(2) When a reevaluation of 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 sub-
mitted to the Associate Administrator. 

(3) A basic description of each hazard 

class and the section reference for class 
definitions appear in § 173.2 of this sub-
chapter. 

(4) Each reference to a Class 3 mate-

rial is modified to read ‘‘Combustible 
liquid’’ when that material is reclassi-
fied in accordance with § 173.150(e) or (f) 
of this subchapter or has a flash point 
above 60 

°

C (140 

°

F) but below 93 

°

C (200 

°

F). 

(e) 

Column 4: Identification number. 

Column 4 lists the identification num-
ber assigned to each proper shipping 
name. Those preceded by the letters 
‘‘UN’’ are associated with proper ship-
ping names considered appropriate for 

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