Resources
Dangerous goods, explained by people who ship it.
Practical, regulation grounded guidance from DGM's experts, so your team gets it right the first time. New articles publish regularly.
Latest articles
Start here.
Dangerous Goods Incident Data, 2026
Original research on what the world publishes about dangerous goods incidents. Of 195 countries, 2 publish national multimodal totals. The full United States series from 2010 to 2024, free to download.
Read →Lithium batteriesUN 3481: Lithium Ion Batteries In or Packed With Equipment
What UN 3481 (UN3481) covers, how it differs from UN 3480, and the marks, documents and packing rules for lithium ion batteries in or packed with equipment.
Read →Lithium batteriesUN 3480: Shipping Standalone Lithium Ion Batteries
A guide to UN 3480 (UN3480): standalone lithium ion batteries, state of charge, the Section IA and IB distinction by air, and how rules change by mode.
Read →ClassificationPacking Groups I, II, and III, Explained
What packing groups mean, how they map to the degree of danger, where they come from in the regulations, and the mistakes that get shipments rejected.
Read →DeclarationsShipper's Declaration for Dangerous Goods, Field by Field
The shipper's declaration for dangerous goods field by field, how the IMO form and 49 CFR shipping papers differ, and the errors that get it rejected.
Read →ClassificationThe 9 Classes of Dangerous Goods, Explained
The nine classes of dangerous goods and their divisions with examples, plus what shippers ask most: who enforces the rules and what undeclared goods are.
Read →Browse by topic
Guides across every mode.
Lithium batteries
UN 3480/3481, state of charge, UN 38.3, and how to ship by air, ocean, and ground.
Read the guides →Classification & reference
The nine hazard classes, packing groups, proper shipping names and UN numbers, explained.
Read the guides →Declarations
The shipper's declaration field by field, the IMO declaration, 49 CFR shipping papers, and the errors that get shipments rejected.
Read the guides →Ocean · IMDG
Segregation, marine pollutants, and the IMDG basics for US shippers.
Publishing soonAir · IATA
IATA DGR essentials, variations, and what changes each edition.
Publishing soon49 CFR & ADR
Reading the Hazardous Materials Table, and European road under ADR.
Publishing soon
Early access
Get DGM One on your own shipments.
DGM One is in early access. Join the waitlist and we’ll be in touch when there’s a place for your team, with your local DGM provider alongside you.