Section 172.506

49 CFR Ch. I (10-1-18 Edition)

contains 454 kg (1,001 pounds) or more
gross weight of non-fissile, fissile-excepted, 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 device that contains a material which
has a subsidiary hazard of being dangerous when wet, as defined in Section 173.124
of this subchapter, shall be placarded
with DANGEROUS WHEN WET placards, on each side and each end, in addition to the placards required by
Section 172.504.
(d) Hazardous materials that possess
secondary hazards may exhibit subsidiary placards that correspond to the
placards described in this part, even
when not required by this part (see also
Section 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]

Section 172.506 Providing and affixing placards: Highway.
(a) Each person offering a motor carrier a hazardous material for transportation 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 offered for transportation, unless the
carrier-s motor vehicle is already placarded 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]

Section 172.507 Special
placarding
provisions: Highway.
(a) Each motor vehicle used to transport a package of highway route controlled quantity Class 7 (radioactive)
materials (see Section 173.403 of this sub-

chapter) must have the required RADIOACTIVE warning placard placed on
a square background as described in
Section 172.527.
(b) A nurse tank, meeting the provisions of Section 173.315(m) of this subchapter,
is not required to be placarded on an
end containing valves, fittings, regulators or gauges when those appurtenances 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]

Section 172.508 Placarding and affixing placards: 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 satisfy 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]

Section 172.510 Special
sions: Rail.

placarding

(a) White square background. The following must have the specified placards placed on a white square background, as described in Section 172.527:
(1) Division 1.1 and 1.2 (explosive) materials 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 containing only a residue of the material.

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