Freight law
CMR and dangerous-goods carriage

Dangerous goods in CMR carriage misdeclared: carrier rights

Dangerous goods misdeclared in CMR carriage: the sender’s information duty and the carrier’s rights under Article 22 CMR.

BRANDAUER Rechtsanwälte
Contact person

Mag. Bernhard Brandauer, Austrian attorney-at-law

BRANDAUER Rechtsanwälte

Mag. Bernhard Brandauer assists with the legal assessment of transport contracts, cargo damage and freight claims.

26 August 2026 · Mag. Bernhard Brandauer, Austrian attorney-at-law

Handing dangerous goods to a carrier without sufficient information can put the entire CMR carriage at risk. The sender must communicate the exact nature of the danger and indicate any precautions that may be required. If that information is missing, Article 22 CMR gives the carrier specific rights and places extensive responsibility on the sender.

The issue is not limited to a missing word in the consignment note. The actual goods, their marks, packaging, supporting documents, handover communications and the time when the carrier discovered the danger must be examined together. This article explains the main steps for carriers, senders and consignees.

The focus is Article 22 CMR in international carriage by road. Additional dangerous-goods rules on classification, packaging and marking may also apply. The overview of the CMR and transport contract explains the general framework.

Quick check

Is the danger of the goods documented sufficiently?

Classify whether the danger was communicated clearly, a declaration is missing or the risk was discovered only during carriage.

01 Question 1

How was the danger of the goods communicated?

The key question is whether the carrier could identify the specific danger and assess the necessary precautions before taking over the goods.

Result

Your orientation

01

The information is initially documented in a traceable way.

Keep the consignment note, dangerous-goods documents, packaging records and handover communications together. Still check whether the description matches the actual goods and the precautions required for them.

02

Missing or incorrect information can trigger the carrier’s rights under Article 22 CMR.

Secure the documents handed over, the condition of the goods, the marks and the time when the issue became known. Do not expose people to danger and coordinate further action with the responsible authorities and specialists. Record costs and damage separately.

03

When the danger is discovered later, safety, information and evidence must be organised immediately.

Stop dangerous handling and do not allow the goods to continue without control. Record who received which information and when, what measures were taken and which costs or damage followed.

What Article 22 CMR requires for dangerous goods

Article 22(1) CMR requires a sender handing dangerous goods to a carrier to communicate the exact nature of the danger and, where necessary, the precautions to be taken. A general description such as “chemicals” or “special cargo” may therefore be insufficient if it does not reveal the specific danger and the necessary handling.

If the information was not entered in the consignment note, Article 22(1) CMR places the burden on the sender or consignee to prove by other means that the carrier knew the exact nature of the danger. The question is not merely whether some warning existed. It is whether the specific danger was known before or at handover well enough for the carrier to assess the carriage properly.

The consignment note, dangerous-goods declaration, safety data, packaging and marking records, emails and handover records should therefore be kept together. The documents must be linked to the particular shipment. General documents from an earlier order do not automatically prove knowledge in the current carriage.

When a dangerous-goods declaration may be insufficient

Information may be missing, incomplete or wrong. This may happen when the goods are handed over under an incorrect description, when the danger is not apparent in the consignment note or when important precautions are not passed on. Whether the information was sufficient depends on the goods and the circumstances at handover.

Visible marks on the packaging do not automatically replace the information owed to the carrier. Conversely, an incomplete consignment note does not always prove that the carrier had no knowledge. Article 22 CMR requires the actual knowledge and the available evidence to be examined together.

The consignee may also be relevant to the proof if it relies on the carrier’s knowledge. The sender, carrier and consignee should therefore preserve the document versions and communications in chronological order rather than retrospectively harmonising them.

What rights the carrier has when the danger was unknown

Where the conditions of Article 22 CMR are met and the carrier took over dangerous goods without knowing their dangerous nature, Article 22(2) CMR permits the goods to be unloaded, destroyed or rendered harmless at any time and place. Under the wording of the Convention, this may be done without compensation.

This does not mean that every unclear description automatically justifies every measure. The actual information must first be assessed. Safety and all applicable dangerous-goods and authority requirements also come first. The carrier should carefully document the condition, the source of the information, notifications and the reasons for the measure.

In an acute risk situation, evidence preservation must not expose people or the environment to further danger. Where possible, photographs, messages, freight documents and witness details should be secured. Legal documentation must remain compatible with the safety measures that are necessary.

Allocate costs, loss and damage to the sender

Article 22(2) CMR makes the sender liable for all expenses, loss and damage arising from the handing over for carriage or the carriage of dangerous goods. The causal link must be explained from the actual facts. A general invoice without a connection to the goods, the measure and the sequence of events is weaker evidence.

The records should distinguish additional safety or unloading costs, necessary notifications, delay, damage to other goods and the handling of dangerous-goods remnants. The carrier’s own damage, damage to third parties and ordinary freight or waiting-time claims should be shown separately.

Liability under Article 22 CMR must be distinguished from other transport-law claims. Whether claims for loss, damage, delay or contract also exist depends on the facts and applicable rules. The CMR liability check can help organise the initial facts for further review.

Distinguish the CMR from other dangerous-goods rules

Article 22 CMR regulates the information duty and certain consequences of an unknown danger in international carriage by road. It does not replace the review of other rules that may apply to classification, packaging, marking, carriage and documentation of dangerous goods.

The legal review may therefore require more than the contract and consignment note. Classification, packaging, marks, safety data, route and the vehicles or handling points used can also matter. The complete dangerous-goods assessment cannot be derived from a CMR consignment note alone.

The overview of consignment notes and documentation helps organise the records. The transport contract checklist helps record special characteristics and required documents before handover.

Common errors with misdeclared dangerous goods

Using a general description: A broad label may hide the specific danger and the precautions required.

Relying only on packaging marks: Visible marks do not automatically prove what information the carrier actually received.

Harmonising the consignment note later: Original and later versions should remain available with time and sender details.

Combining safety measures and costs: Unloading, rendering harmless, delay and further damage need separate records.

Treating the CMR as the whole dangerous-goods review: Additional rules on classification, packaging and marking may also apply.

Which records should be secured now

Secure the consignment note in the version handed over, the goods and dangerous-goods description, packaging and marking photographs, supporting documents and communications before and at handover. Record when and how each person learned of the danger.

If the carrier reacts, record the place, time, measure, notifications and resulting costs. If the goods are unloaded, destroyed or rendered harmless, the circumstances and the goods’ whereabouts should remain traceable.

Where knowledge is disputed, costs are substantial, other goods were damaged or the carriage crosses a border, the complete transport file should be reviewed promptly. The firm can help assess the information, possible claims and sensible next steps.

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FAQ

Questions about dangerous goods and Article 22 CMR

What must the sender communicate about dangerous goods? +

Under Article 22(1) CMR, the sender must communicate the exact nature of the danger and, where necessary, the precautions to be taken. The information must be traceable to the goods and carriage concerned.

May a carrier unload misdeclared dangerous goods? +

Article 22(2) CMR provides that, in the circumstances covered by that provision, unknown dangerous goods may be unloaded, destroyed or rendered harmless at any time and place. The actual knowledge, safety rules and documentation of the measure must be examined.

Who bears the costs of such a measure? +

Article 22(2) CMR places responsibility on the sender for expenses, loss and damage arising from handing over or carrying dangerous goods whose nature was not sufficiently known. The evidence and the actual sequence of events determine the scope of a claim.

Is a reference to dangerous goods in the consignment note enough? +

The reference must make the specific danger and, where necessary, the precautions traceable. Whether it is sufficient depends on the goods, their marks, supporting documents and the carrier’s actual knowledge.

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