Rex's Freight Notes
Shipping Line DG Requirements: From Enquiry to Review
“Can you ship this?” may produce a useful opening reply, but not yet an instruction to dispatch. A workable answer identifies the goods, the routing, the conditions attached and the questions that remain unresolved.
Written by Rex Xu·Shanghai, China
Shanghai Dangerous Goods & International Freight Forwarding Expert
Published
Updated
2 min read

What should I send? View the enquiry checklist
Short Answer
Tie a dangerous goods review to the actual cargo, packing, route and booking conditions. Organise the submission around matching information, explained discrepancies and clear next actions—not attachment volume. Distinguish an enquiry from preliminary discussion and acceptance confirmation. Check the relevant deadlines for the actual shipment instead of relying on a universal lead time or sequence.
Classification, packing and acceptance remain subject to the current edition of applicable regulations, carrier review and port requirements. Confirm before shipment.
What should you ask after a positive initial reply?
Establish what the reply means: an application can be made, a preliminary price can be discussed, or a response has been obtained for this shipment. Check whether the cargo, packaging, quantity and route match the intended operation.
Record the conditions with the outstanding questions. This helps prevent a supplier from treating a possibility discussed by sales as an instruction to release the goods.
How can the first submission be easier to assess?
Organise the documents around the actual product. Explain which goods each file describes, the packing configuration, quantity, dimensions, weight and route. Identify the purpose of specialist documents instead of forwarding an entire product folder without context.
If names, model references or technical fields conflict, include a discrepancy note and ask the issuer for clarification. Good organisation can reduce avoidable exchanges; it cannot promise a review without questions or replace the carrier's decision.
How should a request for more information be handled?
Turn it into an assigned task: what is missing, who can supply it and whether it affects the proposed plan. Technical questions need an appropriate source; operational questions need the relevant operator. A reminder to respond is not a substitute for responsibility.
Identify the change and document revision in the reply. Distinguish resolved questions from ongoing checks. Do not reject a document solely because it is older, or treat a completed upload as confirmation that the cargo has been accepted.
Why is the sailing date only part of the timeline?
List the review, document, declaration and gate-in milestones relevant to the shipment. Confirm their deadlines and dependencies with the actual parties rather than imposing one fixed sequence or an assumed number of days.
Where goods are needed for an event or a production date, destination collection and onward movement also need their own plan. Separate estimated milestones, pending confirmations and the contracted scope. A sailing schedule is not a complete delivery plan.
What is a useful answer when a condition cannot be met?
Identify whether the obstacle is supporting evidence, packaging, timing or the proposed route. Explain what can be supplied, which change needs consideration and which point remains unconfirmed. Approaching another carrier should never involve concealing material cargo information.
This is where my initial planning and key-issue coordination role matters. Customers and overseas agents need to know what can progress, what is outstanding and who owns the next answer—not simply receive an early yes.
What a review is not
A carrier review is an assessment against that carrier's own current requirements, made by the carrier. It is not a guarantee, and it is not something a forwarder can convert into one. What we can do is make the submission accurate and complete, and tell you early when something will not work.
Sources and scope
These official references provide background, not a complete shipment checklist or acceptance approval. US guidance from PHMSA or OSHA does not replace Shanghai export requirements. Confirm the applicable rules and carrier requirements for the actual shipment.
Common questions
- What if two carriers give different answers?
- Compare the cargo, packing, route and conditions behind each response. Clarify the difference rather than treating one answer as proof that the other is wrong.
- Will more attachments make the review easier?
- Only if they are relevant and identifiable. Link each file to the product and show its revision and purpose; unrelated material can obscure the question.
- Can the supplier dispatch after uploading the requested information?
- First confirm that the question is closed and the necessary acceptance and operational arrangements are in place. Submission and confirmation are different states.
- How many days should every DG booking allow?
- There is no universal lead time provided here. Confirm the actual deadlines and work backwards from document readiness and the customer's required timing.
- Does an earlier response remain valid after a routing change?
- Notify the change and confirm whether the response still applies. A shipment-specific answer is not a permanent acceptance for every service.
- Can Rex promise carrier acceptance?
- No. I coordinate the initial plan and key issues; operations colleagues follow bookings, documents and milestones. The actual carrier must make its acceptance decision.
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Tell me the cargo and the required arrival date
Cargo name, UN number if you have it, quantity, packaging, destination and the date it has to be there. If the classification is unsettled, say so and attach the MSDS.