Transportation of Dangerous Goods study materials
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Transportation of Dangerous Goods: Handling, Loading, and Securing

Transportation of Dangerous Goods · Work through your exam, one topic at a time.

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Handling, Loading, and Securing

Handling, loading, and securing

This domain tests what happens between the loading dock and the road: compatibility, segregation, securement, inspection, and communication with the driver. Expect fact patterns with mixed loads, damaged packages, and blocked access.

Core rules

  • Inspect packages before loading. Reject leaking, crushed, or unmarked containers; do not load and see.
  • Load according to compatibility. Some classes must be segregated or separated by distance, barrier, or compartment. The shipping document and segregation rules govern, not convenience.
  • Secure every package against movement, including during braking, turning, and vibration. Use dunnage, straps, or blocking that will not damage the containment.
  • Keep labels, placards, and UN numbers visible. Do not stack cargo against the trailer door or obscure the emergency information.
  • Keep the shipping document within reach of the driver or in a designated holder. Keep emergency response information with it.
  • Control ignition sources and heat. Do not smoke during loading or unloading of flammable or oxidizing goods.

Worked example

A warehouse loads a pallet of Class 8 acid drums next to a pallet of cyanide salt. Both are packaged and labelled, so the loader assumes they are fine. If the acid leaks and contacts cyanide, toxic gas can form. The packages are individually compliant but incompatible in proximity. The loader must separate them according to the segregation rules, or refuse the mixed load until a compliant arrangement is made.

Traps

  • Assuming sealed packages cannot react with each other.
  • Securing only the pallet, not the drums on it.
  • Loading incompatible goods because the truck is going to the same customer.
  • Covering placards with straps or cargo.
  • Letting the driver leave without the shipping document.

Exam focus

Walk the load: inspect, segregate, secure, check visibility, confirm documents. Name the first unsafe condition and the control that should have prevented it.