COMMODITY: Empty primed brass as 1.4S; 25 kg net maximum per package.



PROPER SHIPPING NAME:Cases, cartridge, empty with primer



Empty primed cases which meet Division 1.4 criteria are not regulated in the US as hazardous materials. They are regulated for international air transportation as a Division 1.4S explosive. The ICAO requires competent authority approval of explosives. The US DOT hazardous materials table assigns Special Provision to UN 0055, which constitutes a competent authority approval satisfying the ICAO. No EX approval is required, and this is corroborated by an interpretation.

 49 CFR 172.101, 172.102 Special Provision 50


Package the empty primed brass as follows:

  • The package must be tested, and bear the specification package mark. 
  • The maximum gross weight is 25 kg for passenger aircraft or 100 kg for cargo-aircraft-only).
  • Empty primed cartridges must be packed per Packing Instruction 136; inner,  and outer packagings are required, intermediate packagings are not necessary:

  • The packaging codes are specifications with minimum standards of construction and maximum gross weights.

Citation: IATA marking, 6.2 specifications, 6.3 testing


International air transport is subject to the requirements of IATA, the International Air Transport Association. A special document is required called a Dangerous Goods Declaration (DGD) in addition to any standard bill of lading. Fill out the DGD as follows in four sequences:

Sequence 1 – Dangerous Goods Identification

The sequence is: “UN 0055, CASES, CARTRIDGE, EMPTY WITH PRIMER, 1.4S”. There is no packing group.

For multiple products, each change to Sequence 1 must be on a new line.

Sequence 2 – Quantity and Type of Packing

The sequence is “QUANTITY PACKAGING:MATERIAL-TYPE X NET-QUANTITY, NEQ”, e.g. “5 fibreboard boxes X 11 kg, 1 kg NEQ”. Quantity is the number of shipping cases (packages). The degree of rounding is not specified, but may be to the nearest kilogram, and should be consistent between the DGD, package and overpack markings. Packaging type is material and type, e.g. “fibreboard boxes” or “steel drums”. Metric units must be used, which for solids is “kg”, not capitalized. For ammunition, NEQ is the primer mix.

For multiple products, each change to Sequence 2 must be on a different line, e.g. different net weight, but Sequence 1 does not have to be repeated if together. See IATA DGR Figure 8.1.K.

When overpacks are used:

  • Packaging in overpacks must be listed first.
  • The wording “Overpack Used” must be inserted on the declaration form immediately after all the entries in the overpack.
  • When a consignment consists of multiple overpacks each overpack must have an identification marking any alpha-numeric format) and be marked with the total quantity of dangerous goods within the overpack including the unit of measurement.
  • The total quantity(ies) shown on the Shipper’s Declaration must match the total quantity(ies) shown on the overpack.
  • Multiple overpacks with identical contents must be identified as follows: “Overpack Used X (number of identical overpacks)”, (see IATA Figure 8.1.L and Figure 8.1.N, examples 8 and 10). Multiple overpacks with different contents must be identified by listing them separately

Sequence 3 –Packing Instruction

Write the number of the applicable packing instruction, “136”.

Sequence 4 – Authorizations

The competent authority letter under the link “interpretation” cited above must be attached.

Citation: IATA


Packages containing empty primed cartridges must display the following markings and at least 6mm (1/4”) high, or an appropriate size for packages which are ≤5 kg net, as follows:

  • Proper shipping name – “CASES, CARTRIDGE, EMPTY WITH PRIMER ”
  • UN# – “UN 0055”
  • the full name and address of the shipper and the consignee, located on the same package surface and near the proper shipping name, if the package dimensions are adequate;
  • the net quantity, in kilogram units abbreviated “kg” in lower case letters, e.g. “15.2 kg”. This quantity must be marked adjacent to the UN number and proper shipping name. It may be rounded to the nearest kilogram, or to a desired level of decimals for better accuracy and alignment with the overpack weight. The net quantity should be identical to that shown on the Dangerous Goods Declaration document.
  • the specification package marking, placed in a location and of such size relative to the package as to be readily visible. Must be pre-printed or affixed, and not handwritten. For packages with a gross weight exceeding 30 kg the marking, or a duplicate thereof, must appear on the top or on the side of the package. For example:

The 1.4S hazard label must be applied as follows:

  • When the package dimensions are adequate, labels must be located on the same surface of the package near the proper shipping name marking.
  • Labels should be affixed adjacent to the shipper’s or consignee’s address appearing on the package.
  • Unless the package dimensions are inadequate, the label(s) must be affixed at an angle of 45 degrees (diamond shaped) to the surrounding markings.

Citation: IATA, 7.1.4, 7.1.5,


Examples of overpacks include pallets and specification packages placed in another packaging. International air transport is subject to the requirements of IATA, the International Air Transport Association, which requires unique pallet markings.

Unless all markings and labels representative of all dangerous goods in the overpack are clearly visible, the overpack must be marked with:

  • the word “OVERPACK” in letters at least 12 mm (1/2”) high;
  • UN number
  • proper shipping name
  • full names and addresses of the consignor and consignee

The following requirements apply even if all markings are visible:

  • If there is more than one UN number in an overpack, write each UN number and the total quantity of dangerous goods for each UN number.
  • If there are two or more overpacks, name and mark each pallet with a unique identification mark (which may be in any alpha-numeric format) and the total quantity of dangerous goods, as indicated on the Dangerous Goods Declaration.

Normally we would use this OVERPACK sticker for domestic shipments:

However since there is so much information required, we print it on a piece of paper instead, with OVERPACK and the UN number in 1/2″ print, and affix it to the pallet:

Citation: IATA 7.1.7