Hazmat rules, classes and papers
Questions and answers
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Where are the Hazardous Materials Regulations (HMR) found?
Parts 171 - 180 of title 49 of the Code of Federal Regulations
The HMR is in 49 CFR 171 - 180.
Section 9 · HAZARDOUS MATERIALS ↗PDF, 41 MB -
Is the list in the Hazardous Materials Table all-inclusive?
No, a material’s characteristics and the shipper’s decision also count
The table is not all-inclusive. Whether a material is hazardous depends on its characteristics and the shipper’s decision.
Section 9 · HAZARDOUS MATERIALS ↗PDF, 41 MB -
What shape are the warning signs called placards?
Diamond-shaped, square on point
Placards are diamond-shaped signs, square on point.
Section 9 · HAZARDOUS MATERIALS ↗PDF, 41 MB -
What size of vehicle requires a hazardous materials endorsement when it is used to transport hazardous material as defined in 49 CFR 383.5?
Any size vehicle
You need a CDL with the hazmat endorsement before driving any size vehicle used to haul such hazardous material.
Section 9 · HAZARDOUS MATERIALS ↗PDF, 41 MB -
Who is required to provide hazardous materials training and testing to drivers?
The employer or a designated representative
Your employer or its designated representative must provide the training and testing.
Section 9 · HAZARDOUS MATERIALS ↗PDF, 41 MB -
How long must a hazardous materials employer keep each employee’s training record?
While the employee works with hazardous materials and for 90 days after
The record is kept as long as the employee works with hazardous materials, and for 90 days thereafter.
Section 9 · HAZARDOUS MATERIALS ↗PDF, 41 MB -
How often must hazardous materials employees be trained and tested?
At least once every three years
The regulations require training and testing at least once every three years.
Section 9 · HAZARDOUS MATERIALS ↗PDF, 41 MB -
What must the security risk training given to all hazmat drivers include?
How to recognize and respond to possible security threats
All drivers are trained in hazmat security risks, including recognizing and responding to threats.
Section 9 · HAZARDOUS MATERIALS ↗PDF, 41 MB -
Special training is required before driving a vehicle that transports which materials?
Certain flammable gas materials or highway route controlled quantities of radioactive materials
Drivers need special training for certain flammable gas materials and highway route controlled quantities of radioactive materials.
Section 9 · HAZARDOUS MATERIALS ↗PDF, 41 MB -
Drivers who transport which kinds of tanks must receive specialized training?
Cargo tanks and portable tanks
Drivers of cargo tanks and portable tanks must get specialized training from the employer.
Section 9 · HAZARDOUS MATERIALS ↗PDF, 41 MB -
The rules that tell shippers how to package the materials and drivers how to load, transport, and unload them are called what?
Containment rules
Rules about safe packaging, loading, transport, and unloading are the containment rules.
Section 9 · 9.1.1 – Contain the Material ↗PDF, 41 MB -
To communicate the risk, which of these must shippers provide?
Hazard warning labels, shipping papers, emergency response information, and placards
Shippers communicate the hazard with labels, shipping papers, emergency response information, and placards.
Section 9 · 9.1.2 – Communicate the Risk ↗PDF, 41 MB -
What can result from not complying with the hazardous materials regulations?
Fines and jail
Breaking the rules is unsafe and can lead to fines and jail.
Section 9 · 9.1.3 – Assure Safe Drivers and Equipment ↗PDF, 41 MB -
When should you inspect a vehicle carrying hazardous materials?
Before and during each trip
Inspect the vehicle before and during each trip.
Section 9 · 9.1.3 – Assure Safe Drivers and Equipment ↗PDF, 41 MB -
When a law enforcement officer stops your hazmat vehicle, what may the officer check?
Shipping papers, placards, your hazmat endorsement, and your knowledge
Officers may check your shipping papers, placards, hazmat endorsement, and what you know about hazardous materials.
Section 9 · 9.1.3 – Assure Safe Drivers and Equipment ↗PDF, 41 MB -
Who uses the hazardous materials regulations to determine a product’s identification number, proper shipping name, hazard class, and packing group?
The shipper
The shipper determines the identification number, shipping name, hazard class, packing group, packaging, labels, and placards.
Section 9 · 9.2.1 – The Shipper ↗PDF, 41 MB -
Who must supply the placards for a hazardous materials shipment?
The shipper
The shipper packages, marks, labels, prepares shipping papers, provides emergency response information, and supplies placards.
Section 9 · 9.2.1 – The Shipper ↗PDF, 41 MB -
Where does the shipper certify that the shipment was prepared according to the rules?
On the shipping paper
The shipper certifies on the shipping paper, unless you pull cargo tanks supplied by you or your employer.
Section 9 · 9.2.1 – The Shipper ↗PDF, 41 MB -
Before transportation, the carrier checks that the shipper did what?
Correctly described, marked, labeled, and prepared the shipment
The carrier checks the shipper’s description, marking, labeling, and preparation, and refuses improper shipments.
Section 9 · 9.2.2 – The Carrier ↗PDF, 41 MB -
What must a driver do with leaking packages and shipments?
Refuse them
Drivers refuse leaking packages and shipments.
Section 9 · 9.2.3 – The Driver ↗PDF, 41 MB -
When must a driver report a hazmat accident or incident to the proper government agency?
When it occurs while the driver is in physical control of the shipment
The driver reports accidents and incidents that happen while the shipment is in the driver’s physical control.
Section 9 · 9.2.3 – The Driver ↗PDF, 41 MB -
How many different hazard classes are there?
Nine
A hazard class shows the risks of a material, and there are nine classes.
Section 9 · 9.3.1 – Definitions ↗PDF, 41 MB -
Which of these are shipping papers?
Shipping orders, bills of lading, and manifests
Shipping orders, bills of lading, and manifests are all shipping papers.
Section 9 · 9.3.1 – Definitions ↗PDF, 41 MB -
While driving, where may you keep hazardous materials shipping papers?
In a pouch on the driver’s door or in clear view within immediate reach
While driving, keep them in the door pouch or in clear view within reach with the seat belt fastened.
Section 9 · 9.3.1 – Definitions ↗PDF, 41 MB -
Shipping papers kept in view while driving must be reachable under what condition?
While your seat belt is fastened
They must be within immediate reach while you are buckled in.
Section 9 · 9.3.1 – Definitions ↗PDF, 41 MB -
Where must hazardous materials shipping papers be when you are out of the vehicle?
On the driver’s seat
When you leave the vehicle, put the shipping papers on the driver’s seat.
Section 9 · 9.3.1 – Definitions ↗PDF, 41 MB -
If hazardous materials shipping papers are mixed with others, how should carriers and drivers handle them?
Identify them quickly or keep them on top of the other papers
Hazmat shipping papers must be quickly identified or kept on top, with the emergency response information.
Section 9 · 9.3.1 – Definitions ↗PDF, 41 MB -
What phone number must the shipper include on the shipping papers?
An emergency response telephone number
Shippers must describe hazardous materials correctly and include an emergency response telephone number.
Section 9 · 9.3.1 – Definitions ↗PDF, 41 MB -
Which hazard class includes fuel oil, as shown in the hazard class table?
Combustible liquids
The hazard class table lists fuel oil as an example of a combustible liquid.
Section 9 · 9.3.1 – Definitions ↗PDF, 41 MB -
A hazard warning label will not fit on a package. What may the shipper do?
Put the label on a tag securely attached to the package
If the diamond label will not fit, it may go on a tag securely attached. Gas cylinders may have tags or decals.
Section 9 · 9.3.2 – Package Labels ↗PDF, 41 MB -
What is the minimum number of identical placards a placarded vehicle must have?
Four
A placarded vehicle needs at least four identical placards: front, rear, and both sides.
Section 9 · 9.3.3 – Lists of Regulated Products ↗PDF, 41 MB -
What is the minimum size of a placard?
250mm, 9.84 inches square
Placards are at least 250mm (9.84 inches) square, set square-on-point.
Section 9 · 9.3.3 – Lists of Regulated Products ↗PDF, 41 MB -
Cargo tanks and other bulk packaging display the identification number of their contents on what?
Placards, orange panels, or white square-on-point displays
Bulk packaging shows the ID number on placards, orange panels, or white square-on-point displays the size of placards.
Section 9 · 9.3.3 – Lists of Regulated Products ↗PDF, 41 MB -
How many digits does a hazardous materials identification number have?
Four
Identification numbers are four-digit codes used by first responders.
Section 9 · 9.3.3 – Lists of Regulated Products ↗PDF, 41 MB -
Which book lists the chemicals and the identification numbers assigned to them?
The Emergency Response Guidebook (ERG)
The U.S. DOT Emergency Response Guidebook lists chemicals and their identification numbers.
Section 9 · 9.3.3 – Lists of Regulated Products ↗PDF, 41 MB -
Before transporting a material, on how many lists should you look for its name?
Three
Check the Hazardous Materials Table, the List of Hazardous Substances and Reportable Quantities, and the List of Marine Pollutants.
Section 9 · 9.3.3 – Lists of Regulated Products ↗PDF, 41 MB -
A material has the letter G in Column 1 of the Hazardous Materials Table. What must the shipping paper also show?
The technical name of the hazardous material
G marks a generic shipping name, which must be joined by the technical name on the shipping paper.
Section 9 · 9.3.5 – The Item Description ↗PDF, 41 MB -
In the Hazardous Materials Table, names shown in italics are what?
Not proper shipping names
Proper shipping names are in regular type. Names in italics are not proper shipping names.
Section 9 · 9.3.3 – Lists of Regulated Products ↗PDF, 41 MB -
Column 3 of the Hazardous Materials Table shows the word "Forbidden." What should you do?
Never transport the material
A material marked Forbidden must never be transported.
Section 9 · 9.3.3 – Lists of Regulated Products ↗PDF, 41 MB -
Identification numbers starting with the letters "NA" are used for proper shipping names used where?
Only within the United States and to and from Canada
NA numbers go with shipping names used only in the United States and to and from Canada.
Section 9 · 9.3.3 – Lists of Regulated Products ↗PDF, 41 MB -
Besides the shipping paper, where must the identification number appear?
On the package, and on cargo tanks and other bulk packaging
The ID number must be on the shipping paper, the package, and cargo tanks and other bulk packaging.
Section 9 · 9.3.3 – Lists of Regulated Products ↗PDF, 41 MB -
How is the packing group shown in Column 5 of the Hazardous Materials Table?
In Roman numerals
The packing group is shown as a Roman numeral.
Section 9 · 9.3.3 – Lists of Regulated Products ↗PDF, 41 MB -
In Column 7 of the Hazardous Materials Table, what do the numbers 1-6 mean?
The material is a poison inhalation hazard (PIH)
Numbers 1-6 in Column 7 mark a poison inhalation hazard with special requirements.
Section 9 · 9.3.3 – Lists of Regulated Products ↗PDF, 41 MB -
When a material is transported in a reportable quantity or greater in one package, where does the shipper display the letters RQ?
On the shipping paper and the package
RQ goes on the shipping paper and the package, before or after the basic description.
Section 9 · 9.3.3 – Lists of Regulated Products ↗PDF, 41 MB -
Which spills of materials on the List of Hazardous Substances must you or your employer report?
Any spill that occurs in a reportable quantity
Any spill of a listed substance in a reportable quantity must be reported.
Section 9 · 9.3.3 – Lists of Regulated Products ↗PDF, 41 MB -
The words INHALATION HAZARD are on the shipping paper. Must you display the POISON INHALATION HAZARD placard for a small amount?
Yes, together with the hazard class placard, even for small amounts
Always display the hazard class placard and the POISON INHALATION HAZARD placard, even for small amounts.
Section 9 · 9.3.3 – Lists of Regulated Products ↗PDF, 41 MB -
For highway transportation, the List of Marine Pollutants is used only for chemicals in containers of what capacity?
119 gallons or more without a placard or label
On the highway the list applies to containers of 119 gallons or more without a placard or label under the HMR.
Section 9 · 9.3.3 – Lists of Regulated Products ↗PDF, 41 MB -
What does the Marine Pollutant marking look like?
A white triangle with a fish and an “X” through the fish
The Marine Pollutant marking is a white triangle with a crossed-out fish. It is not a placard.
Section 9 · 9.3.3 – Lists of Regulated Products ↗PDF, 41 MB -
Besides the bulk package, where else must the Marine Pollutant marking be displayed?
On the outside of the vehicle
The marking must also be shown on the outside of the vehicle, and “Marine Pollutant” noted on the shipping papers.
Section 9 · 9.3.3 – Lists of Regulated Products ↗PDF, 41 MB -
A hazmat shipping paper has more than one page. What must the first page show?
The total number of pages
Pages must be numbered, and the first page tells the total, such as Page 1 of 4.
Section 9 · 9.3.4 – The Shipping Paper ↗PDF, 41 MB -
On the example shipping paper, the entry is UN1076, Phosgene, 2.3. What is 2.3?
The hazard class from Column 3 of the table
In the example, UN1076 is the ID number, Phosgene the proper shipping name, and 2.3 the hazard class.
Section 9 · 9.3.4 – The Shipping Paper ↗PDF, 41 MB -
A shipping paper lists both hazardous and non-hazardous products. How may the hazardous materials be shown?
Entered first, highlighted in a contrasting color, or marked with an X in the HM column
Hazardous materials must be entered first, highlighted, or marked with an X in the HM column.
Section 9 · 9.3.5 – The Item Description ↗PDF, 41 MB -
What may be used instead of an "X" in the HM column when a reportable quantity needs to be identified?
The letters "RQ"
RQ may replace the X when the entry is a reportable quantity.
Section 9 · 9.3.5 – The Item Description ↗PDF, 41 MB -
In what order does the basic description of a hazardous material appear?
Identification number, proper shipping name, hazard class or division, packing group
The basic description is ID number, proper shipping name, hazard class or division, and packing group, in that order.
Section 9 · 9.3.5 – The Item Description ↗PDF, 41 MB -
May the identification number, shipping name, and hazard class be abbreviated on the shipping paper?
No, unless specifically authorized in the regulations
These items must not be abbreviated unless the regulations specifically allow it. Packaging type and unit of measure may be.
Section 9 · 9.3.5 – The Item Description ↗PDF, 41 MB -
Who is responsible for the emergency response telephone number on the shipping paper?
The shipper
The emergency response telephone number is the shipper’s responsibility.
Section 9 · 9.3.5 – The Item Description ↗PDF, 41 MB -
Where must emergency response information be usable?
Away from the motor vehicle
Emergency response information must be usable away from the vehicle and explain how to handle incidents safely.
Section 9 · 9.3.5 – The Item Description ↗PDF, 41 MB -
To whom must the driver provide the emergency response information?
Any federal, state, or local authority responding to or investigating a hazmat incident
The driver gives the emergency response information to any authority responding to or investigating an incident.
Section 9 · 9.3.5 – The Item Description ↗PDF, 41 MB -
On a hazardous waste manifest, what word must the shipper put before the proper shipping name?
WASTE
For hazardous wastes, the word WASTE goes before the proper shipping name, as in Waste Acetone.
Section 9 · 9.3.5 – The Item Description ↗PDF, 41 MB -
How long must shippers keep a copy of shipping papers after the initial carrier accepts the material?
2 years, or 3 years for hazardous waste
Shippers keep shipping papers (or an image) for 2 years, and 3 years for hazardous waste.
Section 9 · 9.3.5 – The Item Description ↗PDF, 41 MB -
A carrier only provides carrier service and did not originate the shipment. How long must it keep a copy of the shipping paper?
1 year
A carrier that is not the originator keeps a copy of the shipping paper for 1 year.
Section 9 · 9.3.5 – The Item Description ↗PDF, 41 MB -
When may you accept the shipper’s certification about proper packaging?
Unless a package is clearly unsafe or does not comply with the HMR
You may rely on the shipper’s certification unless a package is clearly unsafe or does not comply.
Section 9 · 9.3.6 – Shipper's Certification ↗PDF, 41 MB -
When is no signed shipper’s certification needed on the shipping paper?
When a private carrier ships its own product or the carrier provides the package
The exceptions are a private carrier hauling its own product and a package provided by the carrier, such as a cargo tank.
Section 9 · 9.3.6 – Shipper's Certification ↗PDF, 41 MB -
Packages with liquid containers inside will have what marking?
Orientation arrows pointing in the correct upright direction
Liquid containers inside a package call for orientation arrows that point upright.
Section 9 · 9.3.7 – Package Markings and Labels ↗PDF, 41 MB -
A package needs more than one label. Where must the labels be?
Close together, near the proper shipping name
Multiple labels must be close together near the proper shipping name.
Section 9 · 9.3.7 – Package Markings and Labels ↗PDF, 41 MB -
When transporting hazardous wastes, what document must you sign by hand and carry?
A Uniform Hazardous Waste Manifest
You must hand sign and carry a Uniform Hazardous Waste Manifest and treat it as a shipping paper.
Section 9 · 9.3.9 – Hazardous Waste Manifest ↗PDF, 41 MB -
To whom may you give a hazardous waste shipment?
Only another registered carrier or a disposal or treatment facility
Waste may only be handed to another registered carrier or a disposal or treatment facility.
Section 9 · 9.3.9 – Hazardous Waste Manifest ↗PDF, 41 MB -
When may you move an improperly placarded vehicle?
Only during an emergency, to protect life or property
Attach placards before driving. An improperly placarded vehicle may be moved only in an emergency to protect life or property.
Section 9 · 9.3.10 – Placarding ↗PDF, 41 MB -
How far must each placard be from any other markings?
At least three inches
Each placard must be at least three inches from other markings.
Section 9 · 9.3.10 – Placarding ↗PDF, 41 MB -
What is the rule about slogans such as “Drive Safely” near placards?
Their use is prohibited
The use of “Drive Safely” and other slogans is prohibited.
Section 9 · 9.3.10 – Placarding ↗PDF, 41 MB -
How must the words or numbers on a placard be placed?
Level and reading from left to right
Placards are placed so the words or numbers are level and read from left to right.
Section 9 · 9.3.10 – Placarding ↗PDF, 41 MB -
How much of a Table 1 material must you carry before placards are required?
Any amount
Table 1 materials must be placarded whenever any amount is transported.
Section 9 · 9.3.11 – Placard Tables ↗PDF, 41 MB -
Except for bulk packaging, Table 2 hazard classes need placards when the total amount reaches what?
1,001 pounds or more, including the package
Table 2 classes need placards at 1,001 pounds or more total, package included. Add up all Table 2 products on board.
Section 9 · 9.3.11 – Placard Tables ↗PDF, 41 MB -
Which of these is a Table 1 material, placarded in any amount?
2.3 Poisonous/Toxic Gases
Division 2.3 poisonous gases are in Table 1 and are placarded POISON GAS in any amount.
Section 9 · 9.3.11 – Placard Tables ↗PDF, 41 MB -
Which Class 7 radioactive materials are placarded in any amount under Table 1?
Those with a Radioactive Yellow III label
Table 1 lists Class 7 with a Radioactive Yellow III label only.
Section 9 · 9.3.11 – Placard Tables ↗PDF, 41 MB -
You have 1,001 pounds or more of two or more Table 2 hazard classes. When may you use DANGEROUS placards instead?
When you have not loaded 2,205 pounds or more of any one Table 2 class at one place
DANGEROUS is allowed unless 2,205 pounds or more of one Table 2 class was loaded at one place, which needs its own placard.
Section 9 · 9.3.11 – Placard Tables ↗PDF, 41 MB -
Is the DANGEROUS placard required when it may be used?
No, it is an option and you can always placard for the materials
The DANGEROUS placard is an option, not a requirement.
Section 9 · 9.3.11 – Placard Tables ↗PDF, 41 MB -
A material has a secondary hazard of dangerous when wet. Does the 1,000-pound exception to placarding apply?
No, it must display the DANGEROUS WHEN WET placard as well
A secondary dangerous when wet hazard needs the DANGEROUS WHEN WET placard in addition, with no 1,000-pound exception.
Section 9 · 9.3.11 – Placard Tables ↗PDF, 41 MB -
Which placard may be used in place of COMBUSTIBLE on a cargo tank or portable tank?
FLAMMABLE
FLAMMABLE may replace COMBUSTIBLE on a cargo tank or portable tank.
Section 9 · 9.3.11 – Placard Tables ↗PDF, 41 MB -
Is a Class 9 placard required for domestic transportation?
No
The Class 9 placard is not required for domestic transportation.
Section 9 · 9.3.11 – Placard Tables ↗PDF, 41 MB -
Which placard does Table 2 list for 6.2 Infectious Substances?
None
Table 2 shows no placard for 6.2 Infectious Substances.
Section 9 · 9.3.11 – Placard Tables ↗PDF, 41 MB -
Where on a placard must the hazard class or division number be displayed?
In the lower corner
Placards for a primary or subsidiary hazard show the class or division number in the lower corner.
Section 9 · 9.3.11 – Placard Tables ↗PDF, 41 MB -
What is bulk packaging?
A single container with a capacity greater than 119 gallons
Bulk packaging is a single container holding more than 119 gallons.
Section 9 · 9.3.11 – Placard Tables ↗PDF, 41 MB -
A bulk package holds only the residue of a hazardous material. Must it be placarded?
Yes, even with only residue
A bulk package, and the vehicle carrying it, must be placarded even if it only has residue.
Section 9 · 9.3.11 – Placard Tables ↗PDF, 41 MB
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