153 

Pipeline and Haz. Matls. Safety Admin., DOT 

§ 172.101 

international transportation as well as 
domestic transportation. Those pre-
ceded by the letters ‘‘NA’’ are associ-
ated with proper shipping names not 
recognized for international transpor-
tation, except to and from Canada. 
Identification numbers in the ‘‘NA9000’’ 
series are associated with proper ship-
ping names not appropriately covered 
by international hazardous materials 
(dangerous goods) transportation 
standards, or not appropriately ad-
dressed by international transpor-
tation standards for emergency re-
sponse information purposes, except for 
transportation between the United 
States and Canada. Those preceded by 
the letters ‘‘ID’’ are associated with 
proper shipping names recognized by 
the ICAO Technical Instructions (IBR, 

see 

§ 171.7 of this subchapter). 

(f) 

Column 5: Packing group. 

Column 5 

specifies one or more packing groups 
assigned to a material corresponding to 
the proper shipping name and hazard 
class for that material. Class 2, Class 7, 
Division 6.2 (other than regulated med-
ical wastes), and ORM–D materials, do 
not have packing groups. Articles in 
other than Class 1 are not assigned to 
packing groups. For packing purposes, 
any requirement for a specific pack-
aging performance level is set out in 
the applicable packing authorizations 
of part 173. Packing Groups I, II and III 
indicate the degree of danger presented 
by the material is great, medium or 
minor, respectively. If more than one 
packing group is indicated for an 
entry, the packing group for the haz-
ardous material is determined using 
the criteria for assignment of packing 
groups specified in subpart D of part 
173. When a reevaluation of test data or 
new data indicates a need to modify 
the specified packing group(s), the data 
should be submitted to the Associate 
Administrator. Each reference in this 
column to a material which is a haz-
ardous waste or a hazardous substance, 
and whose proper shipping name is pre-
ceded in Column 1 of the Table by the 
letter ‘‘A’’ or ‘‘W’’, is modified to read 
‘‘III’’ on those occasions when the ma-
terial is offered for transportation or 
transported by a mode in which its 
transportation is not otherwise subject 
to requirements of this subchapter. 

(g) 

Column 6: Labels. 

Column 6 speci-

fies codes which represent the hazard 
warning labels required for a package 
filled with a material conforming to 
the associated hazard class and proper 
shipping name, unless the package is 
otherwise excepted from labeling by a 
provision in subpart E of this part, or 
part 173 of this subchapter. The first 
code is indicative of the primary haz-
ard of the material. Additional label 
codes are indicative of subsidiary haz-
ards. Provisions in § 172.402 may require 
that a label other than that specified 
in Column 6 be affixed to the package 
in addition to that specified in Column 
6. No label is required for a material 
classed as a combustible liquid or for a 
Class 3 material that is reclassed as a 
combustible liquid. For ‘‘Empty’’ label 
requirements, see § 173.428 of this sub-
chapter. The codes contained in Col-
umn 6 are defined according to the fol-
lowing table: 

L

ABEL

S

UBSTITUTION

T

ABLE

 

Label code 

Label name 

1 ................................................

Explosive 

1.1

1

...........................................

Explosive 1.1

1

 

1.2

1

...........................................

Explosive 1.2

1

 

1.3

1

...........................................

Explosive 1.3

1

 

1.4

1

...........................................

Explosive 1.4

1

 

1.5

1

...........................................

Explosive 1.5

1

 

1.6

1

...........................................

Explosive 1.6

1

 

2.1 .............................................

Flammable Gas 

2.2 .............................................

Non-Flammable Gas 

2.3 .............................................

Poison Gas 

3 ................................................

Flammable Liquid 

4.1 .............................................

Flammable Solid 

4.2 .............................................

Spontaneously Combustible 

4.3 .............................................

Dangerous When Wet 

5.1 .............................................

Oxidizer 

5.2 .............................................

Organic Peroxide 

6.1 (inhalation hazard, Zone A 

or B).

Poison Inhalation Hazard 

6.1 (other than inhalation haz-

ard, Zone A or B)

2

.

Poison 

6.2 .............................................

Infectious substance 

7 ................................................

Radioactive 

8 ................................................

Corrosive 

9 ................................................

Class 9 

1

Refers to the appropriate compatibility group letter. 

2

The packing group for a material is indicated in column 5 

of the table. 

(h) 

Column 7: Special provisions. 

Col-

umn 7 specifies codes for special provi-
sions applicable to hazardous mate-
rials. When Column 7 refers to a special 
provision for a hazardous material, the 
meaning and requirements of that spe-
cial provision are as set forth in 
§ 172.102 of this subpart. 

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