DOT/UN Package Marking Guide

Single Packaging

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UN   1A1  /  Y 1.8  /  100  /  91  /  USA  /  (+AB0229)

Combination Packaging

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UN  46  /  X  /  4  /  S  /  90  /  USA  /  (+AB00C1/APSS)

Key
1 United Nations Designation
2 Type of packaging - example:
  • 1A1 - Steel drum, non-removable head
  • 1A2 - Steel drum, removable head
  • 1G - Fiber drum
  • 1H1 - Plastic drum, non-removable head
  • 1H2 - Plastic drum, removable head
3 Packaging group: X=PGI, Y=PGII, Z=PGIII

NOTE: (you can put a PGIII material in an X or Y because it would be more protective but not the other way around

4 Maximum gross mass in kilograms or maximum specific gravity of a material
5 Liquids - maximum vapor package rating in kilopascals (10 kPa = 1.45 psi) or S = solids only designation
6 Year manufactured
7 Country manufactured in
8 Identifies the manufacturer by code