Trade & registrationDG

UN dangerous goods classes NZ

Know all nine UN classes — placards, segregation, and documentation all reference class numbers.

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Nine classes overview

Nine classes overview sits at the centre of how Dangerous Goods (D) assessments frame real-world scenarios in New Zealand.

Know all nine UN classes — placards, segregation, and documentation all reference class numbers.

Use AllSorted's free Dangerous Goods (D) practice questions to test yourself on nine classes overview — each answer includes a short explanation so you can see the reasoning, not just the correct option.

Class 1 explosives

For Dangerous Goods (D) study, class 1 explosives is one of the areas candidates revisit most often before sitting an official or provider assessment.

Know all nine UN classes — placards, segregation, and documentation all reference class numbers.

If class 1 explosives still feels fuzzy, reread your course notes alongside this section, then run a short practice set focused on Dangerous Goods (D) scenario questions.

Class 7 radioactive

Understanding class 7 radioactive helps you move beyond memorising facts and start applying Dangerous Goods (D) rules the way examiners expect.

UN dangerous goods classes NZ connects directly here: when a question describes a workplace or study situation, map it back to class 7 radioactive before you pick an answer.

Exam-style items often combine class 7 radioactive with neighbouring topics, so note how this section links to the rest of your Dangerous Goods (D) preparation plan.

Multi-class items

Multi-class items sits at the centre of how Dangerous Goods (D) assessments frame real-world scenarios in New Zealand.

Know all nine UN classes — placards, segregation, and documentation all reference class numbers.

Use AllSorted's free Dangerous Goods (D) practice questions to test yourself on multi-class items — each answer includes a short explanation so you can see the reasoning, not just the correct option.

Sources

  • Official examining body or regulator — Confirm current rules before you rely on this for compliance.

AllSorted's Dangerous Goods (D) practice test includes free questions with explanations. AllSorted writes original questions and is not affiliated with any examining body or official provider.

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Published

Last reviewed: 28 January 2026

Unofficial practice only. AllSorted writes original questions. We are not affiliated with NZTA Waka Kotahi or any other examining or licensing body. These items are not official exam papers.