Key takeaways
- The DGD is a legal declaration by the shipper, not a courtesy form.
- Carriers run a DG approval step before accepting the booking; errors mean rejection or worse.
- Approval speed and rejection rates are operational metrics, and both respond to structured intake.
How dangerous goods declarations work
The shipper classifies the cargo under the IMDG Code (UN number, class, packing group), packs and marks it accordingly, and signs the DGD. The carrier's DG desk validates the declaration against the code and the vessel's stowage rules, approves or rejects the booking, and passes accepted details into the manifest and the stowage plan. Ports and authorities rely on the same data for emergency response.
The classic failure mode is unstructured intake: declarations arriving as scanned attachments with missing fields, approvals negotiated by email, and each rejection costing a sailing. Structured digital intake with standardized document requirements, validation before submission, and a visible approval queue cuts turnaround from hours to minutes per file and drops rejection rates measurably.
Why DGD discipline matters
- Correct declarations protect vessel, crew, and cargo; the stowage plan is only as good as the data.
- Structured DG intake cuts approval turnaround and rejection rates at the same time.
- Clean DG data flows into manifests and port filings without rework.
DG approvals in a live carrier operation
A carrier's DG desk replaces email-and-attachment approvals with a structured intake: required fields, standardized documents, automatic completeness checks, and a live queue for approvers. Requests that took most of a day clear in a few hours, rejections fall because errors surface before submission, and every decision is on record.
Frequently asked questions
Who signs the dangerous goods declaration?+
The shipper. The DGD is the shipper's legal declaration that the cargo is properly classified, packed, marked, and labeled; carriers validate it but the responsibility for its accuracy stays with the declarant.
What is the IMDG Code?+
The International Maritime Dangerous Goods Code: the IMO's rules for classifying, packing, marking, documenting, and stowing hazardous cargo carried by sea. DG declarations and carrier approvals are built on it.
Written and reviewed by the InfoSun operations team. Last updated September 9, 2026.