404 

49 CFR Ch. I (10–1–23 Edition) 

§ 172.320 

(2) The symbol, letters and border 

must be black and the background 
white, except for the starburst which 
must be red. 

(3) The KEEP AWAY FROM HEAT 

handling marking required by para-
graph (a) of this section must be dura-
ble, legible and displayed on a back-
ground of contrasting color. 

[69 FR 76153, Dec. 20, 2004, as amended at 80 
FR 1150, Jan. 8, 2015] 

§ 172.320

Explosive hazardous mate-

rials. 

(a) Except as otherwise provided in 

paragraphs (b), (c), (d) and (e) of this 
section, each package containing a 
Class 1 material must be marked with 
the EX-number for each substance, ar-
ticle or device contained therein. 

(b) Except for fireworks approved in 

accordance with § 173.64 of this sub-
chapter, a package of Class 1 materials 
may be marked as follows, in lieu of 
the EX number required by paragraph 
(a) of this section: 

(1) With a national stock number 

issued by the Department of Defense or 
identifying information, such as a 
product code required by regulations 
for commercial explosives specified in 
27 CFR part 555, if the national stock 
number or identifying information can 
be specifically associated with the EX 
number assigned; or 

(2) For Division 1.4G consumer fire-

works reviewed by a Fireworks Certifi-
cation Agency approved in accordance 
with 49 CFR part 107 subpart E and cer-
tified in accordance with § 173.65, with 

405 

Pipeline and Haz. Matls. Safety Admin., DOT 

§ 172.322 

the FC number assigned by a DOT-ap-
proved Fireworks Certification Agen-
cy. 

(c) When more than five different 

Class 1 materials are packed in the 
same package, the package may be 
marked with only five of the EX-num-
bers, national stock numbers, product 
codes, or combination thereof. 

(d) The requirements of this section 

do not apply if the EX number, FC 
number, product code or national stock 
number of each explosive item de-
scribed under a proper shipping de-
scription is shown in association with 
the shipping description required by 
§ 172.202(a). Product codes and national 
stock numbers must be traceable to 
the specific EX number assigned by the 
Associate Administrator or FC number 
assigned by a DOT-approved Fireworks 
Certification Agency. 

(e) The requirements of this section 

do not apply to the following Class 1 
materials: 

(1) Those being shipped to a testing 

agency in accordance with § 173.56(d) of 
this subchapter; 

(2) Those being shipped in accordance 

with § 173.56(e) of this subchapter, for 
the purposes of developmental testing; 

(3) Those which meet the require-

ments of § 173.56(h) of this subchapter 
and therefore are not subject to the ap-
proval process of § 173.56 of this sub-
chapter; 

(4) [Reserved]; 
(5) Those that are transported in ac-

cordance with § 173.56(c)(2) of this sub-
chapter and, therefore, are covered by 
a national security classification cur-
rently in effect. 

[Amdt. 172–123, 56 FR 66254, Dec. 20, 1991, as 
amended by Amdt. 172–139, 59 FR 67487, Dec. 
29, 1994; 66 FR 45379, Aug. 28, 2001; 74 FR 53188, 
Oct. 16, 2009; 78 FR 42477, July 16, 2013] 

§ 172.322

Marine pollutants. 

(a) For vessel transportation of each 

non-bulk packaging that contains a 
marine pollutant— 

(1) For a proper shipping name used 

to describe a hazardous material that 
is a marine pollutant and assigned the 
letter ‘‘G’’ in column (1) of the § 172.101 
hazardous materials table or that con-
tains the text ‘‘n.o.s.,’’ the name of the 
component which makes the material a 
marine pollutant must be marked on 

the package in parentheses in associa-
tion with the marked proper shipping 
name unless the proper shipping name 
identifies by name the component 
which makes the material a marine 
pollutant. Where two or more compo-
nents that make a material a marine 
pollutant are present, the names of at 
least two of the components most pre-
dominantly contributing to the marine 
pollutant designation must appear in 
parentheses in association with the 
marked proper shipping name. For ma-
terials described using ‘‘UN3077, Envi-
ronmentally hazardous substance, 
solid, n.o.s.’’ and ‘‘UN3082, Environ-
mentally hazardous substance, liquid, 
n.o.s.,’’ 

see 

§ 172.102(c)(1), special provi-

sion 441 for additional provisions; and 

(2) Except as otherwise provided in 

this subchapter, the MARINE POL-
LUTANT mark shall be placed in asso-
ciation with the hazard warning labels 
required by subpart E of this part or, in 
the absence of any labels, in associa-
tion with the marked proper shipping 
name. 

(b) Except as otherwise provided in 

this subchapter, a bulk packaging that 
contains a marine pollutant must— 

(1) Be marked with the MARINE 

POLLUTANT mark on at least two op-
posing sides or two ends other than the 
bottom if the packaging has a capacity 
of less than 3,785 L (1,000 gallons). The 
mark must be visible from the direc-
tion it faces. The mark may be dis-
played in black lettering on a square- 
on-point configuration having the same 
outside dimensions as a placard; or 

(2) Be marked on each end and each 

side with the MARINE POLLUTANT 
mark if the packaging has a capacity 
of 3,785 L (1,000 gallons) or more. The 
mark must be visible from the direc-
tion it faces. The mark may be dis-
played in black lettering on a square- 
on-point configuration having the same 
outside dimensions as a placard. 

(c) A transport vehicle or freight con-

tainer that contains a package subject 
to the marking requirements of para-
graph (a) or (b) of this section must be 
marked with the MARINE POLLUT-
ANT mark. The mark must appear on 
each side and each end of the transport 
vehicle or freight container, and must 
be visible from the direction it faces. 
This requirement may be met by the