IMPARGO's transportation and logistics glossary

Find the definitions of the most important terms used in transportation and logistics industry

What Is ADR in Logistics?

ADR is the common logistics term for the European Agreement concerning the International Carriage of Dangerous Goods by Road (French: Accord européen relatif au transport international des marchandises dangereuses par route). In practice, "ADR" refers to the rules and requirements for transporting dangerous goods by road safely and legally.

ADR applies to a large number of countries across Europe and beyond and is widely used as a standard reference in road freight operations. It is revised every two years; the current edition is ADR 2025.

On This Page

  1. What does ADR cover?
  2. The 9 ADR hazard classes
  3. Why ADR matters in logistics
  4. Common ADR use cases
  5. ADR training and compliance responsibilities
  6. ADR and route planning

What does ADR cover?

ADR sets out requirements for the safe road transport of hazardous materials, including:

  • Classification of dangerous goods (e.g., flammable liquids, gases, corrosives)
  • Packaging standards to prevent leaks, damage, or contamination
  • Labelling and hazard signage (including vehicle placards and markings)
  • Transport documentation (papers that must travel with the load)
  • Safety procedures for handling incidents or emergencies
  • Vehicle and equipment rules depending on the goods being carried
  • Training obligations for drivers and operational staff

The 9 ADR hazard classes

ADR sorts dangerous goods into nine hazard classes. The class determines the packaging, labelling, documentation, and handling rules that apply to a given load. The table below summarises all nine classes with typical examples.

The 9 ADR hazard classes
ClassCategoryTypical examples
Class 1ExplosivesAmmunition, fireworks, detonators
Class 2GasesPropane, oxygen, aerosols
Class 3Flammable liquidsPetrol, diesel, solvents, paints
Class 4Flammable solids; spontaneously combustible; emit flammable gas with waterMatches, sulphur, sodium
Class 5Oxidising substances and organic peroxidesFertilisers, peroxides, bleaches
Class 6Toxic and infectious substancesPesticides, medical/clinical waste
Class 7Radioactive materialMedical isotopes, industrial sources
Class 8Corrosive substancesAcids, alkalis, wet-cell batteries
Class 9Miscellaneous dangerous goodsLithium batteries, dry ice, asbestos

 


Why ADR matters in logistics

ADR is essential because dangerous goods create higher risks for:

  • drivers and warehouse staff
  • other road users
  • the environment
  • company liability and insurance coverage

Following ADR helps companies reduce accidents, avoid legal penalties, and ensure shipments can move across borders without delays.


Common ADR use cases

ADR requirements typically apply when transporting materials such as:

  • fuels (diesel, petrol)
  • aerosols and pressurised containers
  • chemicals for manufacturing
  • batteries and lithium shipments
  • cleaning agents and industrial solvents
  • paints, adhesives, and flammable liquids

Example:
A carrier transporting chemical drums must use correct packaging, labels, documentation, and ensure the driver holds valid ADR training.


ADR training and compliance responsibilities

In many cases, drivers transporting dangerous goods must hold an ADR training certificate, which is usually valid for a limited period and must be renewed.

Companies that regularly handle dangerous goods often need internal processes for compliance, including proper staff training, shipment checks, and safety controls. Many organisations also assign a responsible person to oversee dangerous goods compliance and procedures.


ADR and route planning

ADR restricts which tunnels and roads some hazmat loads may use. Planning a truck-legal route that respects those restrictions is part of moving ADR freight. In the Planner Module from IMPARGO, routes are calculated with truck restrictions and per-country tolls in mind, then sent to the driver with truck navigation in the DriverApp.

Plan truck-legal routes with IMPARGO

Plan routes that respect truck restrictions and per-country tolls in the Planner Module, then dispatch to the driver with navigation in the DriverApp. The basic version is free to use.

Book a free demo open the Planner Module →

Impargo-logo

Digitalize your transport business overnight.

© IMPARGO 2026, All rights reserved.