- Half-closed
- Closed
- Opened
- Labeled
From The CDL Manual
All manholes and valves must be closed before moving a tank of hazardous materials, no matter how small the amount in the tank or how short the distance. Manholes and valves must be closed to prevent leaks.
- Turn the engine off unless operating a pump
- Keep the engine running at all times
- The must be grounded until after closing the filling hole
- The tank must be grounded before opening
From The CDL Manual
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.
- Trailer wheels should be chocked
- Engine should turned off unless running a pump
- Before unhooking hose, turn engine off
- You should do all of these things
From The CDL Manual
Compressed Gas —
Keep liquid discharge valves on a compressed gas tank closed except when loading and unloading. Unless your engine runs a pump for product transfer, turn it off when loading or unloading. If you use the engine, turn it off after product transfer before unhooking the hose.
Unhook all loading/unloading connections before coupling, uncoupling or moving a chlorine cargo tank. Always chock trailers and semitrailers to prevent motion when uncoupled from the power unit.
- 300 feet
- 1/2 mile
- 300 yards
- 100 feet
From The CDL Manual
Never park with Division 1.1, 1.2 or 1.3 (Class A or B) explosives within 5 feet of the traveled part of the road. Except for short periods of time needed for vehicle operation necessities (e.g. fueling), do not park within 300 feet of:
- a bridge, tunnel or building;
- a place where people gather; or
- an open fire.
- A group of trees
- A pond
- Other vehicles
- The traveled part of the road
From The CDL Manual
Never park with Division 1.1, 1.2 or 1.3 (Class A or B) explosives within 5 feet of the traveled part of the road. Except for short periods of time needed for vehicle operation necessities (e.g. fueling), do not park within 300 feet of:
- a bridge, tunnel or building;
- a place where people gather; or
- an open fire.
- Inside city limits
- On the carrier's property
- In a safe haven
- On the shipper's property
From The CDL Manual
You may leave your vehicle unattended in a safe haven, an approved place for parking unattended vehicles loaded with explosives. Local authorities usually make the designation of authorized safe havens.
When parking in a safe haven, the driver must make sure the owners of the property are aware where it is parked, what product is in the vehicle, and have a representative watch over the vehicle while the driver is away.
- You can safely get away with it
- Authorized by the DOT
- It is required by the work
- Authorized by your employer
From The CDL Manual
Parking Placarded Vehicle Not Transporting Division 1.1, 1.2 or 1.3 Explosives —
You may park a placarded vehicle (not laden with explosives) within 5 feet of the travelled 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 material on a public street. Do not park within 300 feet of an open fire.
- Be within 300 feet of the vehicle with a clear view
- Be able to move the vehicle if necessary
- Know what to do in an emergency
- Be within 100 feet of the vehicle with a clear view
From The CDL Manual
Attending Parked Vehicles —
The person watching a placarded vehicle must:
- Be in the vehicle awake, not in the sleeper berth, or within 100 feet of the vehicle and have it within clear view,
- Be aware of the hazards of the materials being transported,
- Know what to do in emergencies, and
- Be able to move the vehicle if needed.
- Never use flares
- In conjunction with reflective triangles
- When you have nothing else handy
- Always use flares
From The CDL Manual
No Flares —
You may break down and have to use stopped vehicle warning signals. Use reflective triangles or red electric lights. Never use burning signals, such as flares or fuses, around:
A tank used for Class 3 (flammable liquids) or Division 2.1 (flammable gas) whether loaded or empty.
A vehicle loaded with Division 1.1, 1.2, or 1.3 (Class A or B) explosives.
- The shipper
- The carrier
- The dispatcher
- The driver
From The CDL Manual
Route Restrictions—
Some states and counties require permits to transport hazardous materials or waste. 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.