419 

Pipeline and Haz. Matls. Safety Admin., DOT 

§ 172.402 

HAZARD or POISON GAS label or 
placard, under the conditions set forth 
in § 171.23(b)(10) of this subchapter. 

[Amdt. 172–123, 55 FR 52594, Dec. 21, 1990] 

E

DITORIAL

N

OTE

: For F

EDERAL

R

EGISTER

ci-

tations affecting § 172.400a, see the List of 
CFR Sections Affected, which appears in the 
Finding Aids section of the printed volume 
and at 

www.govinfo.gov. 

§ 172.401

Prohibited labeling. 

(a) Except as otherwise provided in 

this section, no person may offer for 
transportation and no carrier may 
transport a package bearing a label 
specified in this subpart unless: 

(1) The package contains a material 

that is a hazardous material, and 

(2) The label represents a hazard of 

the hazardous material in the package. 

(b) No person may offer for transpor-

tation and no carrier may transport a 
package bearing any marking or label 
which by its color, design, or shape 
could be confused with or conflict with 
a label prescribed by this part. 

(c) The restrictions in paragraphs (a) 

and (b) of this section, do not apply to 
packages labeled in conformance with: 

(1) The UN Recommendations (IBR, 

see § 171.7 of this subchapter); 

(2) The IMDG Code (IBR, see § 171.7 of 

this subchapter); 

(3) The ICAO Technical Instructions 

(IBR, see § 171.7 of this subchapter); 

(4) The TDG Regulations (IBR, see 

§ 171.7 of this subchapter). 

(5) The Globally Harmonized System 

of Classification and Labelling of 
Chemicals (GHS) (IBR, see § 171.7 of 
this subchapter). 

(d) The provisions of paragraph (a) of 

this section do not apply to a pack-
aging bearing a label if that packaging 
is: 

(1) Unused or cleaned and purged of 

all residue; 

(2) Transported in a transport vehicle 

or freight container in such a manner 
that the packaging is not visible dur-
ing transportation; and 

(3) Loaded by the shipper and un-

loaded by the shipper or consignee. 

[Amdt. 172–9, 41 FR 15996, Apr. 15, 1976, as 
amended by Amdt. 172–75, 47 FR 44471, Oct. 7, 
1982; Amdt. 172–77, 47 FR 54822, Dec. 6, 1982; 
Amdt. 172–94, 49 FR 38134, Sept. 27, 1984; 
Amdt. 172–100, 50 FR 41521, Oct. 11, 1985; 
Amdt. 172–123, 55 FR 52594, Dec. 21, 1990; 
Amdt. 172–132, 58 FR 50501, Sept. 27, 1993; 66 
FR 8647, Feb. 1, 2001; 66 FR 45379, Aug. 28, 
2001; 68 FR 75741, 75742, Dec. 31, 2003; 74 FR 
2252, Jan. 14, 2009] 

§ 172.402

Additional labeling require-

ments. 

(a) 

Subsidiary hazard labels. 

Each 

package containing a hazardous mate-
rial— 

(1) Shall be labeled with primary and 

subsidiary hazard labels as specified in 
column 6 of the § 172.101 table (unless 
excepted in paragraph (a)(2) of this sec-
tion); and 

(2)For other than Class 1 or Class 2 

materials (for subsidiary labeling re-
quirements for Class 1 or Class 2 mate-
rials see paragraph (e) or paragraphs (f) 
and (g), respectively, of this section), if 
not already labeled under paragraph 
(a)(1) of this section, shall be labeled 
with subsidiary hazard labels in ac-
cordance with the following table: 

S

UBSIDIARY

H

AZARD

L

ABELS

 

Subsidiary hazard 

level (packing 

group) 

Subsidiary Hazard (Class or Division) 

3 

4.1 

4.2 

4.3 

5.1 

6.1 

8 

I ...........................

X 

*** 

*** 

X 

X 

X 

X 

II ..........................

X 

X 

X 

X 

X 

X 

X 

III .........................

* 

X 

X 

X 

X 

X 

X 

X—Required for all modes. 
*—Required for all modes, except for a material with a flash 

point at or above 38 

°

C (100 

°

F) transported by rail or high-

way. 

**—Reserved 
***—Impossible as subsidiary hazard. 

(b) 

Display of hazard class on labels. 

The appropriate hazard class or divi-
sion number must be displayed in the 
lower corner of a primary hazard label 
and a subsidiary hazard label. 

(c) 

Cargo Aircraft Only label. 

Each per-

son who offers for transportation or 
transports by aircraft a package con-
taining a hazardous material which is 
authorized on cargo aircraft only shall 
label the package with a CARGO AIR-
CRAFT ONLY label specified in 
§ 172.448 of this subpart.