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Loading, transporting, and storing hazardous materials under U.S. regulations (49 CFR)

Chemical of the Week: UN 1814 - Potassium Hydroxide

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

  1. UN 2794 - Batteries, wet, filled with acid, electric storage – Class 8, ERG 154
  2. UN 1202 - Heating oil, light – Class 3, PG III, ERG 128
  3. UN 0337 - Fireworks – Class 1.4S
  4. UN 2672 - Ammonia solution, relative density between 0.880 and 0.957 at 15 degrees C in water, with more than 10 percent but not more than 35 percent ammonia – Class 8, PG III, ERG 154
  5. UN 1993 - Flammable liquids, n.o.s. – Class 3, PG I, 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…

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