Choose A Section:
Go!To communicate the risk, shippers must warn drivers and others about the material's hazards. The regulations require shippers to:
You must stop for all railroad crossings EXCEPT when:
Stop before a railroad crossing if your vehicle:
You must stop 15 to 50 feet before the nearest rail. Proceed only when you are sure no train is coming and you can clear the tracks without stopping. Do not shift gears while crossing the tracks.
Which of the following are true when parking a placarded vehicle?
Which of the following is the INCORRECT driver response to a hazardous material crash or incident?
As a professional driver, your job at the scene of a crash or an incident is to:
You will place placards on hazardous material shipments based on the quantity and hazard class. In order to decide what placard(s) to use on the outside of the vehicle, what must you know?
Placard hazardous materials shipments based on the quantity and hazard class. You can decide which placards to use if you know these three things:
Normally the driver will not have to figure out what placards to use. The shipper is responsible for determining which placards to use and will supply those placards for you.
One exception may happen if you make multiple hazardous materials pickups for the same shipment. Each shipper will know what placards must be used for their particular shipment, but they won't know what placards are needed based on the sum of all of your hazardous shipments. Your company will help you determine this. In 15 years of driving, I never ran into this situation, but it can happen.
When transporting hazardous materials, whose responsibility is it to place placards on the vehicle when loading?
What must you do before loading flammable liquids?
9.5.3 – Flammable Liquids
Turn off your engine before loading or unloading any flammable liquids. Only run the engine if needed to operate a pump. Ground a cargo tank correctly before filling it through an open filling hole. Ground the tank before opening the filling hole and maintain the ground until after closing the filling hole.
If you break down while carrying Division 1 explosives, Division 2 Flammable Gas, or Class 3 Flamable Liquids you must:
You might break down and have to use stopped vehicle signals. Use reflective triangles or red electric lights. Never use burning signals, such as flares or fuses, around a:
What must you do with a placarded vehicle each time you stop?
Make sure your tires are properly inflated. Check placarded vehicles with dual tires at the start of each trip and when you park. You must check the tires each time you stop. The only acceptable way to check tire pressure is to use a tire pressure gauge.
You're carrying hazardous materials and you see smoke coming from the trailer. You feel the back doors and they're hot. Which of the following should you NOT do?
The Hazardoud Materials written CDL Exam is required to obtain your hazardous materials endorsement on your CDL. You must have a Commercial Drivers License (CDL) with a hazardous materials endorsement before you drive any size vehicle that is used to transport hazardous material as defined in 49 CFR 383.5. You must pass a written test about the regulations and requirements to get this endorsement.
See Also:
The shipper also uses the hazardous materials regulations to determine the product’s:
Drivers must keep hazardous materials shipping papers in one of three ways:
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. Placards must be readable from all four directions. They are at least 10 3/4 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.
The shipping paper describes a shipment. A shipping paper for hazardous materials must include:
If a shipping paper describes both hazardous and non-hazardous products, the hazardous materials will be either:
Learn to recognize shipments of hazardous materials. To find out if the shipment includes hazardous materials, look at the shipping paper. Does it have:
Attach the appropriate placards to the vehicle before you drive it. You are only allowed to move an improperly placarded vehicle during an emergency in order to protect life or property. Placards must appear on both sides and both ends of the vehicle. Each placard must be:
The front placard may be on the front of the tractor or the front of the trailer. To decide which placards to use, you need to know:
You may park a placarded vehicle (not laden with explosives) within 5 feet of the traveled part of the road only if your work requires it. Do so only briefly. Someone must always watch the vehicle when parked on a public roadway or shoulder. Do not uncouple a trailer and leave it with hazardous materials on a public street. Do not park within 300 feet of an open fire.
The person attending a placarded vehicle must:
Some states and counties require permits to transport hazardous materials or wastes. They may limit the routes you can use. Local rules about routes and permits change often. It is your job as driver to find out if you need permits or must use special routes. Make sure you have all needed papers before starting.
If you work for a carrier, ask your dispatcher about route restrictions or permits. If you are an independent trucker and are planning a new route, check with state agencies where you plan to travel. Some localities prohibit transportation of hazardous materials through tunnels, over bridges or other roadways. Always check before you start.
Whenever placarded, avoid heavily populated areas, crowds, tunnels, narrow streets and alleys. Take other routes, even if inconvenient, unless there is no other way. Never drive a placarded vehicle near open fires unless you can safely pass without stopping.
Bulk packaging - Packaging, other than a vessel or a barge, including a transport vehicle or freight container, in which hazardous materials are loaded with no intermediate form of containment and which has:
Consignee - The business or person to whom a shipment is delivered.
Division - A subdivision of a hazard class.
EPA - U.S. Environmental Protection Agency
FMCSR - The Federal Motor Carrier Safety Regulations.
Portable Tank - Bulk packaging (except a cylinder having a water capacity of 1,000 pounds or less) designed primarily to be loaded onto, or on or temporarily attached to a transport vehicle or ship and equipped with skids, mountings or accessories to facilitate handling of the tank by mechanical means. It does not include a cargo tank, tank car, multiunit tank car tank or trailer carrying 3AX, 3AAX or 3T cylinders.
Reportable Quantity - The quantity specified in Column 2 of the Appendix to Sec. 172.101 for any material identified in Column 1 of the Appendix.