
Shipping dangerous goods (DG) isn’t just about ticking boxes it's about protecting people, property, and the environment. Mistakes can lead to rejected shipments, fines, or worse: safety incidents. Whether you're new to DG compliance or have been shipping for years, these common pitfalls can trip you up.
At DG Solutions, we’ve seen it all and we’re here to help you avoid costly errors.
1. Using the Wrong UN Number
Each hazardous item has a specific UN number that identifies its classification and handling requirements. Using the wrong UN number can lead to incorrect labelling, documentation errors, and rejected shipments.
Always double-check the Safety Data Sheet (SDS) and refer to NZS 5433 or the IATA/IMDG codes to ensure you're using the correct UN number.
2. Incorrect or Missing Labels
Hazard labels are crucial for identifying risks. Using outdated or incorrect labels can put people at risk and result in non compliance penalties.
Use compliant labels that meet NZ and international standards, browse our online label shop for certified options.
3. Improper Packaging
Not all boxes are created equal. Dangerous goods often require UN approved packaging with specific absorbents, liners, or seals.
Choose the right packaging for the substance and always follow the packing instructions listed in the applicable regulations.
4. Missing or Incomplete Documentation
Shipping dangerous goods requires precise paperwork like the DG Declaration or Shipper’s Declaration. Even a small omission can cause delays or fines.
Need help? Our team provides IATA and IMDG documentation services for both air and sea freight.
5. Incorrect Quantity or Overpacking
Many substances have limits for how much can be shipped in a single package (especially under limited quantity provisions).
Know the thresholds for limited quantities vs full regulation to avoid overpacking and breaking compliance.
6. Untrained Staff Handling Shipments
One of the biggest compliance gaps is untrained staff preparing or signing off DG shipments.
Make sure your team is trained and up to date. We offer custom dangerous goods training on-site or remote.
7. Using the Wrong Transport Mode Rules
Regulations vary significantly between air (IATA), sea (IMDG), and road (NZS 5433). Using air transport rules for sea freight (or vice versa) is a common but serious mistake.
Work with a certified consultant who understands modal differences.
8. Incorrect Emergency Contact Info
In New Zealand, you must provide an emergency contact who is available 24/7 and can give detailed advice about the product.
Use a valid emergency response provider or ensure your business can meet this requirement.
9. Failing to Segregate Incompatible Goods
Some dangerous goods can't be shipped together due to reactivity or safety concerns (e.g., acids and alkalis).
Always check compatibility tables and segregation rules before consolidating DG in the same container or pallet.
10. Assuming “It’s Only a Small Quantity” Means It’s Exempt
Just because you're shipping a small amount doesn’t mean it’s exempt from DG regulations. There are specific thresholds, and they vary based on class and mode.
Even under “Limited Quantity” or “Excepted Quantity” rules, proper documentation, labelling, and training may still be required.
Get It Right with DG Solutions
We help New Zealand businesses ship dangerous goods safely, efficiently, and 100% compliant with local and international laws. From on-site consultations to remote certification and training, we’re your practical partner in DG safety.
Contact us at services@dgsolutions.co.nz to get started!