Customs Requirements for Shipping Dangerous Goods: What You Need to Know Before You Ship 

International shipments of dangerous goods are complex operations that require attention, regulatory knowledge, and thorough preparation. Beyond the technical and logistical aspects related to packaging and transport, one of the most sensitive areas involves customs documentation. 

In this article, we explore the main customs requirements for shipping dangerous goods, with helpful references to DVA Express’s guides on how to prepare a shipment and how dangerous goods are classified. 

What Are Dangerous Goods? 

As explained in the article “What Are Dangerous Goods and How Are They Classified”, dangerous goods are substances or articles that, if not handled properly, can pose risks to health, safety, property, or the environment. 

These goods are divided into 9 hazard classes according to UN criteria, with specific regulations depending on the mode of transport: 

• Air (IATA regulations) 
• Maritime (IMDG Code)
• Road (ADR) 
• Rail (RID) 

This classification is also fundamental for customs purposes, as it determines HS codes, required documentation, and inspection procedures by authorities. 

Customs Requirements: What You Need to Ship Correctly 

Customs authorities require a set of mandatory documents and specific procedures to accept the import or export of dangerous goods, depending on the country and type of product. 

Key customs requirements include: 

1. Classification and Technical Documentation 

First, determine the hazard class and UN number of the product. These are mandatory in the customs declaration. You’ll also need: 

• Safety Data Sheet (SDS): Provides all relevant information on the chemical composition, hazards, and transport instructions. Customs may request this to assess the shipment’s risk.
• Shipper’s Declaration for Dangerous Goods: Required for air shipments. 
• Packaging and labeling compliant with international standards (ADR, IATA, IMDG): Packaging must be certified and properly labeled. Shipments without hazard labels or required markings may be rejected at customs. 

2. TARIC Code and Duties 

Each product must have a TARIC customs code identifying the item for duties, VAT, and potential restrictions. Dangerous goods may require specific tariffs or special authorizations. 

3. Special Authorizations and Licenses 

Some dangerous goods fall under dual-use or restricted items. In these cases, you may need: 

• Export licenses 
• Safety certifications
• Environmental permits 

4. Accurate Customs Declarations 

The customs declaration must be complete and precise, including: 

• Hazard class and UN number 
• HS code 
• Exact quantity 
• Country of origin and destination 
• Detailed product description 
• TARIC code 
• Weight and commercial value 
• Special codes for regulated substances (e.g., toxic agents, refrigerants) 

Errors in the declaration can cause customs blocks, fines, or confiscation. 

5. Support from an Experienced Operator 

Working with a freight forwarder specialized in dangerous goods, such as DVA Express, is often the best choice. These operators know the regulations, manage all documentation, and provide tailored solutions based on destination and product type. 

Connection with Shipment Preparation 

As detailed in the article “How to Prepare a Dangerous Goods Shipment”, the preparation phase is closely linked to customs compliance. A shipment cannot proceed if: 

• Internal checks on classification have not been performed 
• The correct packaging has not been chosen 
• Required certifications have not been issued 

The most common mistake? Thinking shipping is only logistics — in reality, it’s also customs bureaucracy. 

Practical Tips to Avoid Customs Problems 

• Work with a freight forwarder specialized in dangerous goods 
• Keep all original documentation and send digital copies in advance 
• Check the destination country’s regulations (some goods may be banned) 
• Never improvise labeling: use only officially approved symbols and codes 

Conclusion 

Shipping dangerous goods is not impossible, but it requires expertise, precision, and strict regulatory compliance. Customs requirements are one of the most delicate parts of the process, but with the right support and preparation, they can be managed safely and efficiently. 

For further technical insights, visit DVA Express’s blog or consult a specialized logistics partner who can guide you step by step.