439 

Pipeline and Haz. Matls. Safety Admin., DOT 

§ 172.510 

contains 454 kg (1,001 pounds) or more 
gross weight of non-fissile, fissile-ex-
cepted, or fissile uranium hexafluoride 
must be placarded with a CORROSIVE 
placard and a POISON placard on each 
side and each end. 

(c) Each transport vehicle, portable 

tank, freight container or unit load de-
vice that contains a material which 
has a subsidiary hazard of being dan-
gerous when wet, as defined in § 173.124 
of this subchapter, shall be placarded 
with DANGEROUS WHEN WET plac-
ards, on each side and each end, in ad-
dition to the placards required by 
§ 172.504. 

(d) Hazardous materials that possess 

secondary hazards may exhibit sub-
sidiary placards that correspond to the 
placards described in this part, even 
when not required by this part (see also 
§ 172.519(b) (4) of this subpart). 

[Amdt. 172–123, 55 FR 52601, Dec. 21, 1990, as 
amended at 56 FR 66260, Dec. 20, 1991; 57 FR 
45460, Oct. 1, 1992; Amdt. 172–127, 59 FR 49133, 
Sept. 26, 1994; Amdt. 172–151, 62 FR 1231, Jan. 
8, 1997; 62 FR 39398, July 22, 1997; 65 FR 58626, 
Sept. 29, 2000; 72 FR 55692, Oct. 1, 2007; 79 FR 
40610, July 11, 2014; 82 FR 15874, Mar. 30, 2017] 

§ 172.506

Providing and affixing plac-

ards: Highway. 

(a) Each person offering a motor car-

rier a hazardous material for transpor-
tation by highway shall provide to the 
motor carrier the required placards for 
the material being offered prior to or 
at the same time the material is of-
fered for transportation, unless the 
carrier’s motor vehicle is already plac-
arded for the material as required by 
this subpart. 

(1) No motor carrier may transport a 

hazardous material in a motor vehicle, 
unless the placards required for the 
hazardous material are affixed thereto 
as required by this subpart. 

(2) [Reserved] 
(b) [Reserved] 

[Amdt. 172–29, 41 FR 15996, Apr. 15, 1976, as 
amended by Amdt. 172–29A, 41 FR 40679, Sept. 
20, 1976] 

§ 172.507

Special placarding provi-

sions: Highway. 

(a) Each motor vehicle used to trans-

port a package of highway route con-
trolled quantity Class 7 (radioactive) 
materials (see § 173.403 of this sub-

chapter) must have the required RA-
DIOACTIVE warning placard placed on 
a square background as described in 
§ 172.527. 

(b) A nurse tank, meeting the provi-

sions of § 173.315(m) of this subchapter, 
is not required to be placarded on an 
end containing valves, fittings, regu-
lators or gauges when those appur-
tenances prevent the markings and 
placard from being properly placed and 
visible. 

[Amdt. 172–103, 51 FR 5971, Feb. 18, 1986, as 
amended by Amdt. 172–143, 60 FR 50305, Sept. 
28, 1995] 

§ 172.508

Placarding and affixing plac-

ards: Rail. 

(a) Each person offering a hazardous 

material for transportation by rail 
shall affix to the rail car containing 
the material, the placards specified by 
this subpart. Placards displayed on 
motor vehicles, transport containers, 
or portable tanks may be used to sat-
isfy this requirement, if the placards 
otherwise conform to the provisions of 
this subpart. 

(b) No rail carrier may accept a rail 

car containing a hazardous material 
for transportation unless the placards 
for the hazardous material are affixed 
thereto as required by this subpart. 

[Amdt. 172–29, 41 FR 15996, Apr. 15, 1976, as 
amended by Amdt. 172–123, 55 FR 52601, Dec. 
21, 1990] 

§ 172.510

Special placarding provi-

sions: Rail. 

(a) 

White square background. 

The fol-

lowing must have the specified plac-
ards placed on a white square back-
ground, as described in § 172.527: 

(1) Division 1.1 and 1.2 (explosive) ma-

terials which require EXPLOSIVES 1.1 
or EXPLOSIVES 1.2 placards affixed to 
the rail car; 

(2) Materials classed in Division 2.3 

Hazard Zone A or 6.1 Packing Group I 
Hazard Zone A which require POISON 
GAS or POISON placards affixed to the 
rail car, including tank cars containing 
only a residue of the material; and 

(3) Class DOT 113 tank cars used to 

transport a Division 2.1 (flammable 
gas) material, including tank cars con-
taining only a residue of the material. 

440 

49 CFR Ch. I (10–1–23 Edition) 

§ 172.512 

(b) 

Chemical ammunition. 

Each rail 

car containing Division 1.1 or 1.2 (ex-
plosive) ammunition which also meets 
the definition of a material poisonous 
by inhalation (see § 171.8 of this sub-
chapter) must be placarded EXPLO-
SIVES 1.1 or EXPLOSIVES 1.2 and 
POISON GAS or POISON INHALATION 
HAZARD. 

[Amdt. 172–29, 41 FR 15996, Apr. 15, 1976, as 
amended by Amdt. 172–103, 51 FR 5971, Feb. 
18, 1986; Amdt. 172–110, 52 FR 29528, Aug. 10, 
1987; Amdt. 172–111, 52 FR 36671, Sept. 30, 1987; 
Amdt. 172–123, 55 FR 52601, Dec. 21, 1990; 56 
FR 66260, Dec. 20, 1991; 57 FR 45460, Oct. 1, 
1992; Amdt. 172–248, 61 FR 28676, June 5, 1996; 
Amdt. 172–151, 62 FR 1231, Jan. 8, 1997; 62 FR 
39398, July 22, 1997] 

§ 172.512

Freight containers and air-

craft unit load devices. 

(a) 

Capacity of 640 cubic feet or more. 

Each person who offers for transpor-
tation, and each person who loads and 
transports, a hazardous material in a 
freight container or aircraft unit load 
device having a capacity of 640 cubic 
feet or more shall affix to the freight 
container or aircraft unit load device 
the placards specified for the material 
in accordance with § 172.504. However: 

(1) The placarding exception provided 

in § 172.504(c) applies to motor vehicles 
transporting freight containers and 
aircraft unit load devices, 

(2) The placarding exception provided 

in § 172.504(c) applies to each freight 
container and aircraft unit load device 
being transported for delivery to a con-
signee immediately following an air or 
water shipment, and, 

(3) Placarding is not required on a 

freight container or aircraft unit load 
device if it is only transported by air 
and is identified as containing a haz-
ardous material in the manner pro-
vided in part 7, chapter 2, section 2.8, of 
the ICAO Technical Instructions (IBR, 
see § 171.7 of this subchapter). 

(b) 

Capacity less than 18 m 3 (640 cubic 

feet). 

(1) Each person who offers for 

transportation by air, and each person 
who loads and transports by air, a haz-
ardous material in a freight container 
or aircraft unit load device having a 
capacity of less than 18 m

3

(640 cubic 

feet) shall affix one placard of the type 
specified by paragraph (a) of this sec-
tion unless the freight container or air-
craft unit load device: 

(i) Is labeled in accordance with sub-

part E of this part, including 
§ 172.406(e); 

(ii) Contains radioactive materials 

requiring the Radioactive Yellow III 
label and is placarded with one Radio-
active placard and is labeled in accord-
ance with subpart E of this part, in-
cluding § 172.406(e); or, 

(iii) Is identified as containing a haz-

ardous material in the manner pro-
vided in part 7; chapter 2, section 2.8, of 
the ICAO Technical Instructions (IBR, 
see § 171.7 of this subchapter). 

(2) When hazardous materials are of-

fered for transportation, not involving 
air transportation, in a freight con-
tainer having a capacity of less than 
640 cubic feet the freight container 
need not be placarded. However, if not 
placarded, it must be labeled in accord-
ance with subpart E of this part. 

(c) Notwithstanding paragraphs (a) 

and (b) of this section, packages con-
taining hazardous materials offered for 
transportation by air in freight con-
tainers are subject to the inspection re-
quirements of § 175.30 of this chapter. 

[Amdt. 172–29, 41 FR 15996, Apr. 15, 1976] 

E

DITORIAL

N

OTE

: For F

EDERAL

R

EGISTER

ci-

tations affecting § 172.513, see the List of CFR 
Sections Affected, which appears in the 
Finding Aids section of the printed volume 
and at 

www.govinfo.gov. 

§ 172.514

Bulk packagings. 

(a) Except as provided in paragraphs 

(c) and (d) of this section, each person 
who offers for transportation a bulk 
packaging which contains a hazardous 
material, shall affix the placards speci-
fied for the material in §§ 172.504 and 
172.505. 

(b) Each bulk packaging that is re-

quired to be placarded when it contains 
a hazardous material, must remain 
placarded when it is emptied, unless 
it— 

(1) Is sufficiently cleaned of residue 

and purged of vapors to remove any po-
tential hazard; 

(2) Is refilled, with a material requir-

ing different placards or no placards, to 
such an extent that any residue re-
maining in the packaging is no longer 
hazardous; or 

(3) Contains the residue of a haz-

ardous substance in Class 9 in a quan-
tity less than the reportable quantity,