Topic module

Identification and Collective Entries

Use UN numbers, proper shipping names, NOS entries and solution or mixture rules to identify dangerous goods.

Long-form learning

Concept to Risk to Memory to Check-up

Learn where rules live, practise applying them to complete facts, show the decision path and give precise references when the paper requests them.

Core concepts

Concept 1

UN numbers

Exam cue: Start with the substance or article properties, follow the named or collective entry route, and verify the resulting description.

Concept 2

Proper shipping names

Exam cue: Check both the index or list entry and the rule governing the selected name or collective entry.

Concept 3

Collective entries

Risk pitfalls and guardrails

Choosing a broad NOS entry before ruling out a more specific applicable entry.

Guardrail: Do not infer a current live item count from a sample booklet or apply a rule from the wrong transport mode.

Memory anchors

What is the core aim in Identification and Collective Entries?

Use UN numbers, proper shipping names, NOS entries and solution or mixture rules to identify dangerous goods.

What is a dependable method for Identification and Collective Entries?

Start with the substance or article properties, follow the named or collective entry route, and verify the resulting description.

How should the regulatory reference be checked for Identification and Collective Entries?

Check both the index or list entry and the rule governing the selected name or collective entry.

What common error should be avoided in Identification and Collective Entries?

Choosing a broad NOS entry before ruling out a more specific applicable entry.

What makes a DGSA answer complete for Identification and Collective Entries?

State the conclusion, show the relevant decision steps, and provide the precise regulatory reference when requested.

Checkpoint rule

Do the check-up only after you can summarize each concept in one sentence and identify one dangerous pitfall from memory.

Knowledge Check (after reading)

Short check-up to confirm understanding of this module.

1-2 question checkpoint

What is the principal purpose of a four-digit UN number?

A product fits no specific named entry but belongs to a defined hazard family. What should be examined next?

Answer all questions to submit.

Next step personalized recommendations

Move forward only after this module is stable.

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