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Guides · 29 Sep 2026

Shipper's Declaration for Dangerous Goods: What the Form Must Contain and Who Is Responsible

A detailed guide to the content of the Shipper's Declaration for Dangerous Goods (SDDG), the mandatory information and the shipper's legal responsibility in international transport.

Shipper's Declaration for Dangerous Goods: Tờ khai hàng nguy hiểm gồm những thông tin gì và ai chịu trách nhiệm?
Photo: RDNE Stock project / Pexels
Key points

What is the SDDG and why is it vital?

In international transport, especially by air and sea, carrying dangerous goods (DG) always comes with strict safety standards. One of the most important documents, regarded as the "passport" for every DG shipment, is the Shipper's Declaration for Dangerous Goods (SDDG).

The SDDG is more than a simple information form. It is a legal document by which the shipper certifies that the goods have been classified, packed, labelled and declared in accordance with international regulations such as the IATA Dangerous Goods Regulations (DGR) for air transport or the IMDG Code for sea transport. Without this document, or if it contains errors, shipping lines and airlines have the right to refuse the shipment immediately to protect the vehicle and people.

Shipper's Declaration for Dangerous Goods: Tờ khai hàng nguy hiểm gồm những thông tin gì và ai chịu trách nhiệm?
Photo: Griffin Wooldridge / Pexels

Mandatory information on the dangerous goods declaration

A standard SDDG (especially the IATA form for air transport) demands absolute accuracy. Below are the core groups of information that companies need to pay attention to:

1. Information about the parties

2. Details of the dangerous goods (Nature and Quantity of Dangerous Goods)

This is the most important section, and the person completing the declaration must be familiar with the list of dangerous goods. The information includes:

InformationDetails
UN NumberA four-digit number assigned by the United Nations (for example, UN 3480 for lithium-ion batteries).
Proper Shipping Name (PSN)The exact shipping name as prescribed; trade names must not be used.
Class or DivisionThe hazard class (classes 1 to 9).
Packing Group (PG)The packing group (I, II or III) indicating the degree of danger of the goods.
Quantity and Type of PackingThe quantity and type of packaging used (for example, fibreboard box, steel drum).
Packing InstructionThe corresponding packing instruction code in the IATA/IMO regulations.

3. Handling and warning information

The shipper must state clearly whether the goods may be carried only on a cargo aircraft (Cargo Aircraft Only) or may also travel on a passenger aircraft. In addition, an emergency response telephone number is usually required so that contact can be made in the event of an incident.

Who is responsible for preparing and signing the SDDG?

Under international regulations, the shipper bears the highest and final responsibility for the content of the SDDG. Although a company may engage a forwarder or logistics provider such as VPL for advice, the signature on the declaration must be that of an authorised representative of the shipper or a lawfully authorised person who has received dangerous goods training.

Signing the SDDG means the shipper certifies that the goods are fully and accurately described by their proper shipping name, and are classified, packed, marked, labelled and in proper condition for transport according to the applicable international and national regulations.

If an incident occurs because of a false declaration or packaging that does not meet standards, the shipper faces heavy legal liability, including administrative fines, compensation to the carrier for damages, and even criminal liability if serious consequences result.

Common errors that delay shipments

In supporting customers, VPL has noticed several common errors that companies make when preparing the SDDG:

Safe dangerous goods shipping solutions with VPL

Preparing the SDDG yourself can be a major challenge for non-specialist companies, especially as dangerous goods regulations are updated every year. At Viet Power Logistics (VPL), we offer an end-to-end solution to ease this burden for our customers:

We understand that a small error on a document can lead to major losses in cost and time. Let VPL accompany your company in controlling risk and optimising your dangerous goods shipping process.

References
  1. IATA – Dangerous Goods Regulations (DGR)
  2. IMO – International Maritime Dangerous Goods (IMDG) Code

This article is for general information and was compiled by VPL from public sources at the time of publication. Regulations may change – please contact VPL for advice on your specific shipment.

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