AFMAN 24-204(I)/TM 38-250/NAVSUP PUB 505/MCO P4030.19H/ DLAI 4145.3
11 DECEMBER 2001
MARKING HAZARDOUS MATERIALS
A14.1. General Requirements. Mark hazardous materials according to MIL-STD-129 Marking for Shipment and
Storage and this manual. Labels may be used to meet marking requirements to the extent they meet all application,
placement, size, legibility, and durability requirements for marking.
A14.2. United Nations (UN) Packaging Specification Markings. UN specification markings are mandatory for
all packages of hazardous materials unless exempted by 1.7 or a separate approval. A description of the codes and
sequence of information contained in the UN specification marking is identified in figure A14.1. A sample of how
the UN specification markings look is in figure A14.2 and figure A14.3.
Grandfathered Items. Containers packaged before January 1, 1990 may be shipped internationally by
military air without the UN specification markings. Annotate the shipping papers with the words,
"Government-owned goods packaged before January 1, 1990."
Figure A14.1. UN Specification Marking Codes and Sequence of Instruction.
The symbol used to certify that the packaging complies with United Nations
recommendations. For embossed metal packagings the capital "UN" can be applied as the
This is a two to four position code.
The first position indicates the type of packaging and will be one of the following numbers:
1 = Drum
2 = Wooden barrel
3 = Jerrican
4 = Box
5 = Bag
6 = Composite packaging
7 = Pressure receptacle
The second position indicates the type of material that the container is made of. For
composite packagings, two capital letters (second and third positions) will be used to
indicate the type of materials. The first letter indicates the material of the inner receptacle
and the second letter indicates the material of the outer packaging. For combination
packagings, only the code for the outer packaging will be used. The following letters
indicate the type of materials:
A = Steel (all types and surface treatments)
B = Aluminum
C = Natural wood
D = Plywood
F = Reconstituted wood
G = Fiberboard
H = Plastic materials
L = Textile
M = Paper, multi-wall
N = Metal (other than steel or aluminum)
P = Glass, porcelain, or stoneware
The third position (fourth position for composite packagings) will be a number indicating the
category of packaging within the same type (i.e., 1A1 [non-removable head steel drum], 1A2
[removable head steel drum], 6HG1 [plastic receptacle with outer fiber drum] 6HG2 [plastic
receptacle with outer fiberboard box]).