Carriage of dangerous goods: rules, responsibilities and restrictions explained 

When shipping dangerous goods, transport is not just about moving a parcel from A to B. Strict rules apply to protect people, infrastructure and the environment.
The carriage of dangerous goods is regulated worldwide, but the exact requirements depend on the transport mode, the type of goods and the countries involved.

In this article, we explain how the transportation of dangerous goods works, which regulations apply, where responsibilities lie between shipper and carrier and how to deal with restricted and prohibited dangerous goods.

What is the carriage of dangerous goods?

The carriage of dangerous goods refers to the transport of substances or articles that pose a risk during transport. These risks can be related to fire, explosion, toxicity, corrosion or environmental damage.

Dangerous goods transport applies to multiple modalities: road transport, air transport and sea transport.

Each modality has its own legal framework, but they all follow the same basic principles: classification, packaging, labelling, documentation and trained handling.

Transportation of dangerous goods: applicable regulations

The carriage of dangerous goods is governed by international regulations. The most important ones are:

• ADR – road transport within Europe
• IATA DGR – air transport
• IMDG Code – sea transport

Together, these form the backbone of dangerous goods transport worldwide. Local authorities may add national rules on top of these frameworks.

When businesses talk about carriage of dangerous goods regulations, they usually refer to the combined effect of these international agreements and country-specific additions.

Shipper vs carrier responsibilities

A common misconception is that carriers are fully responsible for dangerous goods shipments. In reality, responsibilities are clearly divided.

The shipper carries the primary responsibility for compliance. If information is incorrect or incomplete, liability typically lies with the shipper.

Carriers may refuse shipments if requirements are not met, even if goods are legally allowed.

Prohibited vs restricted dangerous goods

Not all dangerous goods are treated the same.

Prohibited dangerous goods

These goods are not allowed for transport at all under certain modalities or by specific carriers. Examples include:

• Highly unstable explosives
• Certain toxic gases
• Substances banned by national law

If goods are prohibited, no documentation or packaging will make transport possible.

Restricted dangerous goods

Restricted dangerous goods may be transported, but only under strict conditions. These conditions can include:

• Quantity limits
• Special packaging or outer cartons
• Additional documentation
• Limited transport modes or routes

Most businesses dealing with dangerous goods fall into this category rather than shipping fully prohibited items.

Country- and carrier-specific restrictions in dangerous goods transport

Even when dangerous goods are permitted under international regulations, additional restrictions may still apply. These can come from national authorities or from individual carriers.

Country-specific restrictions may include:

• Tunnels or urban areas with ADR route bans
• Additional permits for lithium batteries
• Stricter national enforcement or inspections
• Temporary bans due to safety or political reasons

This is especially relevant for cross-border shipments within Europe, where rules may differ between neighbouring countries.

In addition to national rules, carriers may apply their own restrictions. Logistics providers such as UPS, FedEx or DHL sometimes enforce stricter conditions than the official regulations.

Examples include:

• Not accepting certain dangerous goods classes
• Lower quantity limits per shipment
• Additional packaging requirements
• Restrictions for specific destinations or transport modes

Because of these carrier-specific policies, a shipment that is technically allowed under ADR, IATA or IMDG may still be refused by a particular carrier.

For businesses shipping dangerous goods internationally, it is therefore important to check both regulatory requirements and carrier acceptance policies before sending a shipment.

Why compliance matters

Incorrect handling of dangerous goods can lead to shipment delays or refusals, big fines, safety incidents or damage to carrier relationships.
So understanding dangerous goods transport regulations is not just about compliance, but about keeping logistics predictable and scalable. As long as responsibilities are clear and regulations are followed, the carriage of dangerous goods is manageable.