CDL Hazmat Endorsement — All Questions

What is the main purpose of the hazardous materials regulations?

• a.To require all drivers to carry a firefighting certificate
• b.To contain the product, communicate the risk, and ensure safe transportation✓
• c.To increase the cost of shipping dangerous goods
• d.To limit hazmat shipments to daylight hours only

The regulations exist to contain the material, communicate its hazards to everyone in the transportation chain, and make sure it is transported safely. Containment, communication, and safe transport are the three core goals. They protect drivers, the public, and emergency responders.

Who is responsible for making sure a shipper correctly names, labels, and marks a hazardous materials shipment?

• a.The shipper✓
• b.The consignee (receiver)
• c.The driver only
• d.The state police

The shipper uses the regulations to determine the product's proper shipping name, hazard class, identification number, and required labels and markings. The shipper certifies on the shipping paper that the shipment was prepared according to the rules. The carrier and driver must still check that the shipment appears correct before transport.

Where must a driver keep hazardous materials shipping papers while driving?

• a.Locked in the trailer with the cargo
• b.In the truck's engine compartment
• c.Mailed ahead to the destination
• d.Within reach and in a pouch on the driver's door or on the seat within reach✓

Shipping papers must be readily available to emergency responders. When driving, keep them in a pouch on the driver's door or in clear view on the seat within your reach. When you leave the vehicle, they go on the driver's seat or in the door pouch.

What column of the Hazardous Materials Table lists the identification number for a material?

• a.The packing group column
• b.The identification numbers column✓
• c.The label codes column
• d.The proper shipping name column only

The Hazardous Materials Table has separate columns, and the identification numbers column provides the four-digit UN or NA number assigned to each material. This number appears on shipping papers and often on placards. It helps responders quickly identify the product.

An entry in the Hazardous Materials Table with a plus (+) in the first column means what?

• a.The material requires no shipping paper
• b.The shipping name and hazard class are fixed and cannot be changed✓
• c.The material is forbidden from transport
• d.The driver may choose any hazard class

A plus sign locks the proper shipping name, hazard class, and packing group for that entry even if the material does not otherwise meet the class definition. It removes any judgment about the classification. This keeps naming consistent across shippers.

What does the letter 'G' in the first column of the Hazardous Materials Table indicate?

• a.A technical name must be added in parentheses on the shipping paper✓
• b.The material is a gas
• c.The material is government-owned
• d.The shipment is exempt from placarding

The letter G means the proper shipping name is a generic description, so the shipper must add the specific technical name of the hazardous material in parentheses. This gives responders more precise information. It applies to entries like 'Compound, cleaning liquid.'

Which hazard class covers explosives?

• a.Class 1✓
• b.Class 3
• c.Class 9
• d.Class 8

Class 1 is explosives, divided into divisions 1.1 through 1.6 based on the type and severity of the explosion hazard. Class 3 is flammable liquids, Class 8 is corrosives, and Class 9 is miscellaneous. Knowing the class numbers helps you read placards and shipping papers.

On a shipping paper, how must a hazardous material be described relative to non-hazardous items?

• a.It must stand out by being listed first, highlighted, or marked with an 'X' or 'RQ' in the HM column✓
• b.It must be shipped on a separate truck
• c.It may be listed anywhere on the page
• d.It must be listed last

Hazardous materials must be clearly distinguished from other cargo on a mixed shipping paper. This is done by listing them first, printing them in a contrasting color, or placing an 'X' (or 'RQ') in a column labeled HM before the shipping name. This ensures responders can find the entry quickly.

In what order must the basic description of a hazardous material appear on a shipping paper?

• a.Proper shipping name, packing group, ID number, hazard class
• b.Hazard class, packing group, shipping name, ID number
• c.Identification number, proper shipping name, hazard class, packing group✓
• d.Packing group, ID number, hazard class, shipping name

The basic description sequence is identification number, proper shipping name, hazard class or division, and packing group. This standardized order lets carriers and responders read the entry consistently. Any technical names in parentheses follow the proper shipping name.

What must a driver do before transporting a hazardous material shipment?

• a.Repackage the material into stronger containers
• b.Add extra placards for safety
• c.Make sure the shipment is properly identified, marked, labeled, and not leaking✓
• d.Remove all labels to prevent theft

The driver should accept a shipment only if it is properly described on the shipping paper, correctly marked and labeled, and shows no signs of leaks. Refusing a leaking or improperly prepared shipment is part of the driver's responsibility. Never transport a package that is leaking hazardous material.

What does the term 'RQ' on a shipping paper indicate?

• a.The route is restricted to highways
• b.The shipment is a return quantity
• c.A reportable quantity of a hazardous substance is present✓
• d.The material requires refrigeration

RQ stands for reportable quantity, meaning the package contains a hazardous substance at or above the amount that must be reported if released. It appears before or after the basic description. A spill of an RQ material must be reported to the National Response Center.

A driver who transports certain hazardous materials must have what special document in addition to a CDL?

• a.A firefighter license
• b.A hazardous materials endorsement on the CDL✓
• c.A hazmat insurance card
• d.A passport

To haul placardable amounts of hazardous materials, a driver must obtain the H endorsement on the commercial driver's license. This requires passing a knowledge test and a Transportation Security Administration background check. The endorsement must be renewed periodically.

What background check is required before a driver can receive a hazmat endorsement?

• a.A credit history check
• b.A drug test administered by the DMV
• c.A vision-only medical exam
• d.A Transportation Security Administration (TSA) security threat assessment✓

Federal law requires the TSA to conduct a security threat assessment, including a criminal history and immigration check, before a state issues a hazmat endorsement. This was added to reduce the risk of hazardous materials being used in terrorism. Drivers must be fingerprinted as part of the process.

What is the proper shipping name column used for on the Hazardous Materials Table?

• a.Indicating the color of the placard
• b.Listing the manufacturer's brand name
• c.Providing the regulated name that must appear on shipping papers and packages✓
• d.Showing the retail price of the product

The proper shipping name is the standardized name assigned by the regulations and must be used on shipping papers and package markings. Trade names or brand names cannot be substituted. Proper shipping names appear in regular type in the table.

What information must a hazmat shipping paper include besides the basic description?

• a.The total quantity, unit of measure, and the shipper's certification✓
• b.The weather forecast for the route
• c.The retail sales price
• d.The driver's home address

A shipping paper must show the total quantity and unit of measure of the hazardous material along with the shipper's signed certification that the shipment is properly prepared. The number and type of packages may also be shown. The certification confirms the shipment meets the regulations.

Which document tells emergency responders how to handle an incident involving a specific hazardous material?

• a.The bill of lading only
• b.The Emergency Response Guidebook (ERG)✓
• c.The vehicle registration
• d.The driver's logbook

The Emergency Response Guidebook is used by responders to identify hazards and take initial protective actions based on the material's ID number or name. Drivers should also carry emergency response information for the materials they transport. This information must be available at all times during transport.

What must a driver do if a hazardous material is not listed by its specific name in the Hazardous Materials Table?

• a.Invent a new shipping name
• b.Refuse to identify the material at all
• c.Ship it without any description
• d.Use the most appropriate generic or 'n.o.s.' shipping name that matches the hazard class✓

When a specific name is not listed, the shipper selects an appropriate generic or 'not otherwise specified' (n.o.s.) entry that best describes the material's hazard class. The technical name is then added in parentheses when required. This keeps the shipment properly classified.

Class 8 hazardous materials are known as what?

• a.Corrosives✓
• b.Flammable gases
• c.Radioactive materials
• d.Oxidizers

Class 8 covers corrosive materials such as acids and bases that can destroy skin or corrode metal. Class 2 covers gases, Class 7 covers radioactive materials, and Class 5 covers oxidizers. Corrosives require careful handling to prevent contact and container damage.

What is the packing group of a material used to indicate?

• a.The number of placards needed
• b.The truck weight limit
• c.The color of the required label
• d.The degree of danger within a hazard class (I is greatest, III is least)✓

Packing groups I, II, and III show the relative degree of danger, with Group I representing the greatest hazard and Group III the least. They appear in Roman numerals on the shipping paper. Some classes, such as gases, do not use packing groups.

Who must certify that a hazmat shipment is properly prepared for transport?

• a.The driver
• b.The state inspector
• c.The shipper✓
• d.The receiving customer

The shipper signs a certification on the shipping paper stating that the materials are properly classified, described, packaged, marked, and labeled according to the regulations. This is legally required for most hazmat shipments. The driver relies on this certification but must still refuse obviously unsafe shipments.

Which hazard class covers flammable and combustible liquids?

• a.Class 6
• b.Class 9
• c.Class 3✓
• d.Class 4

Class 3 covers flammable and combustible liquids such as gasoline and diesel. Class 4 covers flammable solids, Class 6 covers poisons and infectious substances, and Class 9 covers miscellaneous materials. Flammable liquids give off vapors that can ignite easily.

What must a driver do with hazardous materials shipping papers when leaving the truck?

• a.Take them home each night
• b.Lock them in the glove box out of view
• c.Give them to any bystander
• d.Leave them in the driver's door pouch or on the driver's seat✓

When the driver is not in the vehicle, the shipping papers must be left in the driver's door pouch or in clear view on the driver's seat. This ensures emergency responders can find the papers quickly if something happens while the driver is away. Papers must always be easy to locate.

What does a hazardous material label on a package tell you?

• a.The delivery date
• b.The name of the truck driver
• c.The exact weight of the package
• d.The hazard class of the material inside✓

A hazardous materials label is a diamond-shaped marking placed on a package to warn of the hazard class of the contents. Labels communicate risk at the package level, while placards communicate at the vehicle level. Correct labels are the shipper's responsibility.

Why must the driver understand the different lists (Table, hazardous substances, marine pollutants) in the regulations?

• a.To decide the delivery price
• b.To choose the truck's paint color
• c.To calculate fuel taxes
• d.To correctly identify a material and determine the shipping, marking, and placarding rules✓

The regulations include several lists that a shipper and driver use together to identify a material and apply the correct requirements. These include the Hazardous Materials Table, the list of hazardous substances and reportable quantities, and the list of marine pollutants. Using them correctly ensures the shipment is handled safely and legally.