UK ADR module revision

ADR Class 1 Explosives Study Guide

Prepare for specialist Class 1 training with a structured guide to explosive divisions, compatibility, packaging, carriage, loading, security and incident priorities.

Take 20-question free test Read the Class 1: Explosives guide

210 app questions20 free online5 practice topics

Module overview

What is the Class 1: Explosives module?

The ADR Class 1 module is specialist training for drivers carrying explosive substances and articles. It begins with the behaviour of explosives—detonation, deflagration, shock waves and pyrotechnic effects—then uses divisions and compatibility groups to describe the risk and whether different explosives may be carried together. Net explosive mass, restrictions on particular groups and the distinction between substances and articles are important foundations for later loading decisions.

The module then applies those classifications to UN-approved packaging, labels, marks, placards, permitted vehicle types, maximum loads, transport documents, routes, parking, convoy separation and security. Practical loading content covers cleanliness, mechanical handling, load height, weight distribution, restraint and avoiding friction. Incident training emphasises early communication, preventing fire, assessing the situation, protecting the public, evacuation and hard cover.

Syllabus coverage

What you study in Class 1: Explosives

These themes group the official learning objectives into practical revision areas. Open the topic map below for the exact question-bank structure used by ADR Driver Pro.

Divisions and compatibility groups

Explosive characteristics, the risks represented by each division, compatibility rules, prohibited combinations, net explosive mass and the restrictions applied to particular loads.

Packaging, marks and placards

UN-approved packaging, performance and certification, inner and outer package marks, overpacks, subsidiary hazards, soundness checks and vehicle or container placarding.

Vehicles, documents and routes

Permitted vehicle types, load limits, certification, transport documents, required equipment, smoking and passenger restrictions, route selection, parking, stops, breakdowns and non-delivery.

Safe loading and restraint

Clean load spaces, careful mechanical handling, minimising height, distributing weight, securing the load, avoiding friction and applying mixed-load rules.

Security and incident response

High-consequence dangerous-goods controls, preventing accidental initiation, communicating with emergency services, fire priorities, public protection, evacuation and hard cover.

Practice-topic map

Question-bank coverage

The app total counts unique questions in each canonical practice topic. The free column is the separate TopicsLite.plist subset available on this website.

Practice topic	In app	Free online
Definitions, Divisions & Compatibility	45	10
Packaging, Labels, Marks & Placards	35	10
Vehicles, Carriage, Routes & Security	60	—
Safe Loading, Mixed Loads & Restraint	35	—
Incidents, Fire, Evacuation & Hard Cover	35	—
Module total	210	20

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Qualification context

How this module fits an ADR route

The specialist explosives route combines Core with Class 1. GOV.UK treats explosives separately from the general Packages/Tanks and Group A/B paths, although drivers adding other classes later may need further method-of-carriage and class training.

Class 1 rules are highly load-specific. Revision builds recognition and decision-making, but the transport document, vehicle approval, competent instructions and current procedures control the actual journey.

Revision plan

How to study Class 1: Explosives

1Create a clear table for divisions and keep it separate from the compatibility-group mixing rules.
2Practise moving from classification to the operational consequence: package, vehicle, load limit, route, parking or security control.
3Use loading scenarios to test cleanliness, friction, restraint, weight distribution and incompatible combinations.
4In incident questions, prioritise distance, communication, public safety, evacuation and hard cover over intervention with the load.

Common questions

Class 1: Explosives FAQs

What does the ADR Class 1 module cover?

It covers explosive characteristics, divisions, compatibility groups, packaging and labelling, vehicle and load restrictions, documents, routes, security, safe loading, mixed loads and emergency action.

What is an explosives compatibility group used for?

Compatibility groups help determine whether different Class 1 substances and articles may be loaded or carried together. They work alongside the division, which describes the type of explosive hazard.

What modules are needed for the specialist explosives route?

The UK specialist route combines the Core module with Class 1 Explosives. Additional carriage or class modules are needed if the driver later qualifies for other dangerous goods.

Revise Class 1: Explosives in ADR Driver Pro

Continue with all 210 Class 1: Explosives questions, flash cards, bookmarks and saved practice history in the app.