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

Chemical of the Week: UN 1170 - Ethanol

Chemical searchUN, name, CAS, special provisionsField CheckPlacards and segregation for your load (mobile)Segregation check49 CFR 177.848 - load, transport, storageSegregation tableFull segregation matrix (49 CFR 177.848)ERG guidesEmergency Response Guidebook

Most searched this month

  1. UN 1789 - Hydrochloric acid – Class 8, PG II, ERG 157
  2. UN 3528 - Engine, internal combustion, flammable liquid powered or Engine, fuel cell, flammable liquid powered or Machinery, internal combustion, flammable liquid powered or Machinery, fuel cell, flammable liquid powered – Class 3, ERG 128
  3. UN 1993 - Flammable liquids, n.o.s. – Class 3, PG I, ERG 128
  4. UN 2794 - Batteries, wet, filled with acid, electric storage – Class 8, ERG 154
  5. UN 1950 - Aerosols, flammable, (each not exceeding 1 L capacity) – Class 2.1, ERG 126

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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