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Loading, transporting, and storing hazardous materials under U.S. regulations (49 CFR)
Chemical of the Week: UN 1541 - Acetone Cyanohydrin
Chemical searchUN, name, CAS, special provisionsLoad InspectorInspector view: shipping paper, hazard-class placard reference, §172.504 trace, segregationSegregation check49 CFR 177.848 - load, transport, storageSegregation tableFull segregation matrix (49 CFR 177.848)ERG guidesEmergency Response Guidebook
Most searched this month
- UN 2794 - Batteries, wet, filled with acid, electric storage – Class 8, ERG 154
- ID 8000 - Consumer commodity – Class 9
- UN 1325 - Flammable solids, organic, n.o.s. – Class 4.1, PG II, ERG 133
- UN 0318 - Grenades, practice, hand or rifle – Class 1.3G
- UN 1202 - Heating oil, light – Class 3, PG III, ERG 128
Latest updates
- May 2026Load suggestions (Beta) (Load suggestions): New planning tool for 49 CFR §177.848 — optimized load groups for hazard-class segregation and for Class 1 compatibility groups. Available from the menu an…
- May 2026Substance information (info search): Each entry now opens with an At a glance summary (UN/ID, hazard class, packing group, ERG guide, special provisions) and an HMT snapshot badge showing the active…