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UK military packaging requirements: An essential guide

Kalon Rumens: Last Updated 13th November 2025
Posted In: Design & Innovation | Guides and Advice | Transit Protection
https://www.gwp.co.uk/author/kalonr/ xx

A guide to military packaging requirements

An overview of how to source military-level packaging

If your business supplies products directly or indirectly to the defence sector, you must have a solid understanding of UK military packaging requirements.

But what information do you require to pack military goods?

UK military packaging requirements include adherence to defence standards (Def Stan 81-41). Packaging suppliers must also hold the MPAS (Military Packager Accreditation Scheme) certification. Extensive testing, along with information such as Nato Stock Number (NSN), size, weight, Primary Packaging Quantity (PPQ), and contact number, is also required.

This guide outlines everything you need to know about meeting defence packaging requirements. It outlines expectations for your packaging supplier, explains the different levels of military packaging, and provides essential information for sourcing military-grade packaging. It also highlights additional factors and requirements to consider to ensure full compliance and optimal protection.

Military personnel unloading packing cases from an army vehicle.
There are several pieces of information required in order to manufacture defence standard packaging.

Contents

Supplier requirements

What is the Military Packaging Accreditation Scheme?

Due to the complexities and specialist knowledge required to produce military packaging, packaging suppliers themselves must be certified to the appropriate standards.

From July 2012, any company supplying military-level packaged products to the Ministry of Defence (MOD) must ensure that its packager is accredited under the Military Packaging Accreditation Scheme (MPAS). Designed around the needs of the MOD, this updated accreditation scheme replaces the previous Defence DR/14 requirements for packaging design for the defence industries.

The MOD created MPAS to ensure that the design and production of military-level packaging meet relevant defence standards, making packaging safe for handling, transit, and storage within the military supply chain.

Aluminium cases under camo nets
A wide range of packaging types are commonplace as part of the UK MOD packaging requirements.

Defence Standard 81-41

In addition to being MPAS certified, military packaging suppliers must comply with a detailed set of defence standards.

Defence Standard 81-41 applies specifically to packaging. These standards result from the MOD outlining the requirements of packaging to protect goods against deterioration, physical, and mechanical damage. The standard is set out in six parts and primarily focuses on environmental conditions for preserving items during storage, general handling, and distribution by rail, road, sea, and air.

The six parts of Def Stan 81-41 are:

  • Part 1: Defence packaging requirements.
  • Part 2: Military packaging design.
  • Part 3: Environmental testing.
  • Part 4: Service Packaging Instruction Sheet (SPIS).
  • Part 5: Production processes.
  • Part 6: Package markings.

What is a SPIS?

Certified packaging companies design military containers to meet specific requirements and suit the demands of the contract. The design is called a Services Packaging Instruction Sheet (SPIS).

A SPIS is, therefore, essentially a guide to maintaining, cleaning, and packing military equipment. An SPIS is only required for military packaging.

Often, the SPIS will dictate the use of a specific material – such as a single-wall, solid fibreboard carton, traditionally used for small items sealed in a polythene envelope within the carton.

Corrugated fibreboard packaging
Corrugated fibreboard is widely used for various military packaging requirements.

What is a DEFORM 129A?

A DEFORM 129A is a document that a packaging supplier can request to see the current status of an SPIS design, whether one exists, or even discover if a Standard Family Specification (SFS) has been used against the item being packaged.

A DEFORM 129A can also simultaneously request authorisation to send a copy or update the existing SPIS, switch to an SFS instead, or produce a new SPIS design.

Products

Which products require military-level packaging?

To determine which items can and should be packaged under Def Stan 81-41, refer to the latest version of the standard and any associated documentation provided by the UK Ministry of Defence.

Since standards can be updated or revised, it is recommended to check with the MOD or the relevant authoritative body for the latest information on Def Stan 81-41 and its application to packaging-specific items.

An aircraft canopy in specialist military packaging
Products ranging from ammunition to large aircraft parts require specialist, def-stan packaging.

Military packaging grades

Identifying the level to which your packaging needs to conform

In accordance with the Def Stan 81-41, there are three common packing levels for preservation:

  • J: For items which may be stored anywhere in the world, within any climatic condition, for up to two years.
  • N: For items which could also be stored anywhere in the world, in non-climatic conditions (clean and dry), for up to five years.
  • P: Similar to commercial packaging and can be designated to items which need to be stored for up to five years, but only in normal storage conditions.

The items you need packaged and stored will determine the required packaging type.

Checklist

Information required for the manufacture of defence packaging

Having identified the relevant product information and packaging level for preservation, you’ll need to provide various details to your MPAS packaging provider.

The information required to pack military goods typically includes:

  • A NATO Stock Number (NSN) is a 13-digit unique identification number allocated to every item that the MOD (and most other military forces) uses.
  • The name and description of the item that will be packaged.
  • Which department of the MOD (Army, Navy, or RAF) is responsible.
  • The manufacturer’s part number.
  • The size and weight of the items.
  • Primary Package Quantity (PPQ).
  • If the MOD is likely to keep your item in storage, and for how long.
  • Your items’ fragility factor.
  • Your items’ level of resistance to G-force.
  • Your items’ centre of gravity (this can be essential for safe lifting and loading during transportation.
A missile in a custom flight case
Following the checklist of requirements will allow your chosen defence packaging supplier to manufacture suitable solutions for your specific products.

Additional packaging considerations

Requirements for labels, lifting, and reusable packaging

It is essential also to consider several other elements of your military packaging, especially for large or complex items.

Labels

Labels must comply with Def Stan 81-41: Part 6; however, certain materials used in labelling are covered by different standards, namely Def Stan 75-3 and Def Stan 80-132.

You must protect external paper labels with either a waterproof, transparent strip of tape with pressure-sensitive adhesive or a layer of adhesive emulsion and polyvinyl acetate.

Other labels, such as ISPM 15, already exist for pallets, which require heat treatment to allow you to ship goods between countries.

Handles and lifting

The decision on whether military packaging requires handles or lifting aids rests with the designer and will depend on the characteristics of the item(s).

Suitable handling equipment is necessary when items are excessively heavy for manual lifting.

Military personnel lifting packing cases onto a vehicle.
Military packaging may require handles, but the decision is generally left to the designer.

Reusable packaging

Guidelines from the MOD (Def Stan 81-41: Part 1, Section 5.5b) stipulate that packaging design should facilitate reuse and/or recovery whenever feasible to reduce the environmental impact of packaging waste. Nonetheless, for specific items, reusing packaging may not be practical.

Summary

Selecting a military packaging supplier

Military packaging typically requires greater consideration than standard packaging due to its added complexity and the nature of the challenges (and environments) it must address.

Mission-critical equipment must be protected against all eventualities, arrive intact, and remain serviceable, with appropriate documentation.

As MPAS packaging suppliers with over 30 years of experience in the specific demands of military packaging, GWP and the wider Macfarlane Group can supply defence-standard packaging regardless of your product, application, or challenges. In addition to an extensive range of specialist defence packaging products, we can also provide you with free, impartial advice.

So if you need help with military packaging requirements, please speak with one of our packaging experts.

About the author

Kalon Rumens, Macfarlane Packaging Designer

Kalon Rumens

Packaging Designer | Macfarlane Group

Kalon has strong knowledge and experience of timber, heavy duty and composite packaging, and holds an MPAS certification.

Important note

Due to the sensitive and regulated nature of the topic this guide addresses (military packaging) we have taken extra steps to ensure its accuracy and reliability. You can find out more in our content policy.

All information is, to the best of our knowledge, accurate and correct at the time of publication. Please also note that, as all scenarios vary, not all information contained in this guide may apply to your specific application. There may also be specific regulations or laws, not covered within this particular guide, that apply. Please view the list of defence packaging regulations for further details.

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