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9.3.3 – Lists of Regulated Products
Placards. Placards are used to warn others of
hazardous materials. Placards are signs put on the
outside of a vehicle and on bulk packages, which
identify the hazard class of the cargo. A placarded
vehicle must have at least four identical placards.
They are put on the front, rear, and both sides of the
vehicle. See Figure 9.3. Placards must be readable
from all four directions. They are at least 250mm
9.84 inches square, square-on-point, in a diamond
shape. Cargo tanks and other bulk packaging
display the identification number of their contents on
placards or orange panels or white square-on-point
displays that are the same size as placards.
Examples of HAZMAT Placards
Figure 9.3
Identification numbers are a four-digit code used by
first responders to identify hazardous materials. An
identification number may be used to identify more
than one chemical. The letters “NA or “UN” will
precede the identification number. The United
States Department of Transportation’s Emergency
Response Guidebook (ERG) lists the chemicals and
the identification numbers assigned to them.
There are three main lists used by shippers,
carriers, and drivers when trying to identify
hazardous materials. Before transporting a material,
look for its name on three lists. Some materials are
on all lists, others on only one. Always check the
following lists:
Section 172.101, the Hazardous Materials Table.
Appendix A to Section 172.101, the List of
Hazardous Substances and Reportable Quantities.
Appendix B to Section 172.101, the List of Marine
Pollutants.
The Hazardous Materials Table. Figure 9.4 shows
part of the Hazardous Materials Table.
Column 1 tells which shipping mode(s) the entry
affects and other information concerning the
shipping description. The next five columns show
each material's shipping name, hazard class or
division, identification number, packaging group,
and required labels.
Six different symbols may appear in Column 1 of the
table.
(+) Shows the proper shipping name, hazard
class, and packing group to use, even if the
material doesn't meet the hazard class
definition.
(A) Means the hazardous material described in
Column 2 is subject to the HMR only when
offered or intended for transport by air
unless it is a hazardous substance or
hazardous waste.
(W) Means the hazardous material described in
Column 2 is subject to the HMR only when
offered or intended for transportation by
water unless it is a hazardous substance,
hazardous waste, or marine pollutant.
(D) Means the proper shipping name is
appropriate for describing materials for
domestic transportation, but may not be
proper for international transportation.
(I) Identifies a proper shipping name that is
used to describe materials in international
transportation. A different shipping name
may be used when only domestic
transportation is involved.
(G) Means this hazardous material described in
Column 2 is a generic shipping name. A
generic shipping name must be
accompanied by a technical name on the
shipping paper. A technical name is a
specific chemical that makes the product
hazardous
Column 2 lists the proper shipping names and
descriptions of regulated materials. Entries are in
alphabetical order so you can more quickly find the
right entry. The table shows proper shipping names
in regular type. The shipping paper must show
proper shipping names. Names shown in italics are
not proper shipping names.
Section 9 - Hazardous Material Page 9-4
Version: July 2017
Commercial Driver’s License Manual – 2005 CDL Testing System
49 CFR 172.101 Hazardous Materials Table
Symbols
Hazardous Materials
Description & Proper
Shipping Names
Hazard
Class or
Division
Identification
Numbers
PG Label
Codes
Special
Provisions
(172.102)
Packaging (173. ***)
Non
Exceptions
Bulk
Bulk
(1)
(2)
(3)
(4)
(5)
(6)
(7)
(8A)
(8B)
(8C)
A Acetaldehyde ammonia 9
UN1841
III 9
IB8, IP3,
IP7, T1,
TP33
155
204
240
Figure 9.4
Appendix A to 49 CFR 172.101
List of Hazardous Substances and Reportable Quantities
Hazardous Substances
Phenyl mercaptan
Phenylmercury acetate
Phenylthiourea
Phorate
Phosgene
Phosphine
Phosphoric acid
Phosphoric acid, diethyl
4-nitrophenyl ester
Phosphoric acid, lead (2+)
Salt (2:3)salt
Reportable Quantity (RQ) Pounds
(Kilograms)
100 (45.4)
100 (45.4)
100 (45.4)
10 (4.54)
10 (4.54)
100 (45.4)
5,000 (2270)
100 (45.4)
10 (.454)
Figure 9.5
Column 3 shows a material's hazard class or
division, or the entry "Forbidden." Never transport a
"Forbidden" material. Placard hazardous materials
shipments based on the quantity and hazard class.
You can decide which placards to use if you know
these three things:
Material's hazard class.
Amount being shipped.
Amount of all hazardous materials of all classes on
your vehicle.
Column 4 lists the identification number for each
proper shipping name. Identification numbers are
preceded by the letters “UN”, "NA." or “ID”. The
letters "NA" are associated with proper shipping
names that are only used within the United States
and to and from Canada. The letters “ID” are
associated with proper shipping names recognized
by the International Civil Aviation Organization
(IACO) Technical instructions for transportation by
air. The identification number must appear on the
shipping paper as part of the shipping description
and also appear on the package. It also must
appear on cargo tanks and other bulk packaging.
Police and firefighters use this number to quickly
identify the hazardous materials.
Column 5 shows the packing group (in Roman
numeral) assigned to a material.
Column 6 shows the hazard warning label(s)
shippers must put on packages of hazardous
materials. Some products require use of more than
one label due to a multiple hazards being present.
Section 9 - Hazardous Material Page 9-5
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Commercial Driver’s License Manual – 2005 CDL Testing System
Column 7 lists the additional (special) provisions
that apply to this material. When there is an entry in
this column, you must refer to the federal
regulations for specific information. The numbers 1-
6 in this column mean the hazardous material is a
poison inhalation hazard (PIH). PIH materials have
special requirements for shipping papers, marking,
and placards.
Column 8 is a three-part column showing the
section numbers covering the packaging
requirements for each hazardous material.
Note: Columns 9 and 10 do not apply to
transportation by highway.
Appendix A to 49 CFR 172.101 - The List of
9.3.4 – The Shipping Paper
The shipping paper shown in Figure 9.6 describes a
shipment. A shipping paper for hazardous materials
must include:
Page numbers if the shipping paper has more than
one page. The first page must tell the total number
of pages. For example, "Page 1 of 4".
A proper shipping description for each hazardous
material.
A shipper's certification, signed by the shipper,
saying they prepared the shipment according to
the regulations.
Shipping Paper
Hazardous Substances and Reportable
Quantities. The DOT and the EPA want to know
about spills of hazardous substances. They are
named in the List of Hazardous Substances and
Reportable Quantities. See Figure 9.5. Column 2 of
the list shows each product's reportable quantity
TO:
ABC
Corporation
88 Valley
Street
Anywhere,
VA
FROM
:
DEF
Corporatio
n
55
Mountain
Street
Nowhere,
CO
Page
1 of 1
(RQ). When these materials are being transported
Quantity HM
Description
Weight
in a reportable quantity or greater in one package,
the shipper displays the letters RQ on the shipping
paper and package. The letters RQ may appear
before or after the basic description. You or your
employer must report any spill of these materials,
which occurs in a reportable quantity.
If the words INHALATION HAZARD appear on the
shipping paper or package, the rules require display
of the POISON INHALATION HAZARD or POISON
GAS placards, as appropriate. These placards must
be used in addition to other placards, which may be
required by the product's hazard class. Always
display the hazard class placard and the POISON
INHALATION HAZARD placard, even for small
amounts.
Appendix B to 49 CFR 172.101 – List of Marine
Pollutants
1
cylinder
RQ
(“RQ”
means that
this is a
reportable
quantity.)
UN1076,Phosgene
, 2.3,
Poison, Inhalation
Hazard,
Zone A
(UN1076 is the
Identification
Number from
Column 4 of the
Hazardous
materials Table.
Phosgene is the
proper shipping
name from Column
2 of the Hazardous
Materials Table.
2.3 is the Hazard
Class from Column
3 of the Hazardous
Materials Table.)
25 lbs
Appendix B is a listing of chemicals that are toxic to
marine life. For highway transportation, this list is
only used for chemicals in a container with a
capacity of 119 gallons or more without a placard or
label as specified by the HMR.
This is to certify that the above named materials are
properly classified, described, packaged, marked and
labeled, and are in proper condition for transportation
according to the applicable regulations of the
Department of Transportation.
Any bulk packages of a Marine Pollutant must
display the Marine Pollutant marking (white triangle
with a fish and an “X” through the fish). This marking
(it is not a placard) must also be displayed on the
outside of the vehicle. In addition, a notation must
be made on the shipping papers near the
Shipper
:
Per:
Date:
DEF
Corporatio
n
Smith
October 15,
2003
Carrier:
Per:
Date:
Safet
y First
description of the material: “Marine Pollutant”.
Special Instructions: 24 hour Emergency Contact,
John Smith 1-800-555-5555
Figure 9.6
Section 9 - Hazardous Material Page 9-6
Version: July 2017
Commercial Driver’s License Manual – 2005 CDL Testing System
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