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AEP-97
National authorities and Regional or National Test Centres testing small arms ammunition designs for NATO Qualification, Production or Surveillance
NATO's 27-volume manual of proof and inspection test procedures, equipment and sentencing rules for the small-calibre interchangeability standards it supports.
AEP-97, an Allied Engineering Publication, is NATO's Multi-Calibre Manual of Proof and Inspection: one publication, in 27 volumes, that carries the test procedures behind six NATO calibre standards for small arms ammunition - AOP-4820, AOP-4172, AOP-4509, AOP-2310, AOP-4090 and AOP-4383. Each of those standards sets what a NATO-interchangeable ammunition design has to achieve; AEP-97 is where the test methods, equipment and sentencing rules that check a design against them actually live. Its own scope clause puts it directly: "The scope of this manual is to prescribe the uniform test methods, equipment and inspection procedures to assess the technical performance requirements for the following NATO small arms ammunition standards to ensure functional interchangeability on the battlefield."
A NATO nation commits to AEP-97 by ratifying one of those six calibre standards, not by AEP-97 existing on its own. Volume 1 sets out the mechanism directly: "In ratifying one or more of the above standards, nations agree to the following implementation mechanism applicable to the related calibre." What follows from that agreement is assessment of ammunition designs, testing at NATO-certified Test Centres, and use of the NATO Symbol of Interchangeability only for configurations that have actually been tested and authorised under this manual.
AEP-97 addresses NATO nations, not manufacturers directly. Each nation acts through its own national delegate (Head of Delegation) to AC/225's Sub-Group 1 (SG/1) on Small Arms Ammunition Interchangeability, and testing itself is carried out at a Test Centre: "There are two NATO Regional Test Centres (RTC) certified for the conduct of NATO testing of small arms ammunition," and a nation may also run one or more National Test Centres of its own. A manufacturer's design reaches NATO testing only because its own nation puts it forward; the manual states that manufacturers and non-NATO nations cannot submit ammunition for NATO Qualification Approval or Production Testing independently.
Volumes 2 to 4 set out three distinct levels of NATO testing, each with its own volume and its own purpose. Qualification Approval "is conducted initially for each ammunition design submitted and serves to establish the compliance of those designs with the provisions of the appropriate standard." Production Testing runs on an ongoing basis once a design is in production, to confirm that manufacture continues to merit the NATO Symbol of Interchangeability and to catch an unauthorised change to the design or the process that makes it. Surveillance Testing runs on ammunition already qualified and already in national stockpiles, to check it still performs after time in storage. A failure at either of the later two stages can lead to the Symbol being suspended or withdrawn from that design. Volume 5 sets out who is responsible for running all of this: the National Delegate to SG/1, and the RTC Superintendent at each Regional Test Centre, who conducts and reports on testing, keeps the Test Centre's own equipment and standards current, and inspects a National Test Centre before it may be NATO-certified.
Volumes 6 to 11 hold material the individual test procedures rely on rather than a test procedure of their own. Volume 6 sets the test equipment specification and the visual standards used to classify a production defect. Volume 7 sets how a defect found outside the Function and Casualty Test is sentenced. Volume 8 governs NATO Reference Ammunition, the fixed baseline every test compares a submission against; its use is tightly controlled - "NATO Reference Ammunition shall NOT be used for national or contractor production control" - when stocks run low or deteriorate, SG/1 asks a nation to volunteer to produce a new lot, which SG/1 accepts only after both Regional Test Centres have tested it. Volumes 9 and 10 govern the family of weapons NATO nominates as the common rig every nation's ammunition is tested against for a calibre: how a weapon is introduced, replaced, upgraded, or withdrawn, and what the sponsoring nation has to keep supplying while it remains in that role. Volume 11 sets a four-category scheme for classifying a defect or incident found in any test, which the individual test-procedure volumes then apply when they decide whether a result passes.
Volumes 12 to 27 are sixteen self-contained procedures, one per characteristic: chamber pressure, velocity and action time; climatic storage conditioning; function and casualty firing; link performance; barrel erosion; smoke and flash; precision; terminal effects; trajectory matching; tracer performance; residual stress; primer sensitivity; bullet extraction; propellant and primer; waterproofing; and cook-off. None of them applies uniformly. Each volume's own applicability clause names which of the three test levels it covers and for which calibres, and only a handful - among them the pressure/velocity/timing test, the function and casualty test, the precision test and the tracer performance test - extend to Surveillance testing of ammunition already in service. Several of the rest apply only at Qualification Approval and Production, and a few apply at Qualification Approval alone.
A design does not arrive at a Test Centre on its own. Ammunition is eligible only once the submitting nation has procured or produced it for its own forces and declared it safe and suitable. It needs a build standard to test against, a government-approved laboratory's analysis report (a Certificate of Conformity stands in its place at the Production Test stage), and, for a number of link-related tests, a national Certificate of Conformity showing those tests met the submitting nation's own requirements rather than a NATO one. Pre-submission testing can happen at a National Test Centre or at a facility holding ISO 9001 certification: "The ammunition must have been successfully tested at a National Test Centre or an ISO 9001 certified facility (which could be the ammunition producer)."
AEP-97 does not certify a company, and it names no accreditation scheme a supplier can join. A NATO Qualification - a NATO Design Number and the right to carry the NATO Symbol of Interchangeability - is awarded to an ammunition design by AC/225 (LCGDSS-SG/1), not to the company that made it. The organisational certification the manual does describe runs the other way: "Before proceeding to carry out testing in accordance with the requirements of AEP-97, the RTC/NTC must obtain NATO certification by AC/225(LCGDSS-SG/1) for specified calibres." That certifies the Test Centre's own competence to run AEP-97's procedures, never a supplier or a product line. Where a facility instead holds ISO 9001 certification for pre-submission testing, that certificate is held against ISO 9001, not against AEP-97.
AOP-2, AAP-6 (NATO's glossary of terms and definitions), AAS3P-22, STANAG 2895 and NATO document AC/225 (Panel III-SP1) D/237 are all named in AEP-97's text. AAS3P-22 marks out what AEP-97 deliberately does not cover: safety and suitability assessment. STANAG 2895 is cited as a guide for climatic conditioning. AC/225 (Panel III-SP1) D/237 is cited as binding equipment drawings, reproduced in full as an annex to one of the test-procedure volumes. ISO 9001 appears too, as the alternative certification a pre-submission testing facility may hold, and STANAG 4297, AOP-15 and AOP-48 are cited together as reference material for shelf-life and storage assessment.
The work AEP-97 sets out - preparing an ammunition design, taking it through a national authority, and carrying it through Qualification Approval, Production and Surveillance testing - happens at a Regional or National Test Centre, not in software. What a manufacturer or a national authority needs alongside that work is the documentation trail: the build standard for a submitted design, the safety-and-suitability declaration a nation makes before submission, the analysis reports and Certificates of Conformity a submission package requires, and the production and surveillance records that show a qualified design still matches what was originally tested.
ComplyTrain is a place to hold and version that documentation, control who authored and approved each record, and keep the training records for the people who manage submission, production monitoring and surveillance scheduling, in the same way it supports any other engineering or quality procedure a contract or a national authority demands. It does not run any of AEP-97's tests itself, does not decide whether a design meets a Test Centre's criteria, and does not award or imply a NATO Qualification, a NATO Design Number, or the NATO Symbol of Interchangeability.
What applies to a given programme, and at what tier, is set by the contract and the customer's quality clause, not by any vendor. The standards explorer shows what sits alongside AEP-97, including the six calibre standards it supports, and we are glad to talk through how you would evidence this kind of work.
Tell us how you need to work with AEP-97 and what you need from it. We will come back to you about what ComplyTrain can do.
Thank you. Your list is on its way to your inbox, and we will come back to you on what working with these standards in ComplyTrain involves, usually within one business day.
It does not bind on its own. A NATO nation commits to it by ratifying one of the six calibre standards it supports; AEP-97 then becomes concrete for a manufacturer once its own nation puts a design forward for testing, or a contract calls for ammunition already carrying, or seeking, the NATO Symbol of Interchangeability.
No. AEP-97 describes a NATO Qualification awarded to an ammunition design, not a certification a company can hold. The organisational certification the manual describes belongs to the Regional or National Test Centre that runs the testing, and that certifies the Test Centre's own competence, not a supplier.
A standard such as AOP-2310 sets what a design of that calibre has to achieve to be considered NATO-interchangeable. AEP-97 carries the actual test methods, equipment and sentencing rules a Test Centre uses to check a submitted design against that standard.
No. AEP-97 states that manufacturers and non-NATO nations cannot submit ammunition for NATO Qualification Approval or Production Testing independently; only a NATO nation's own national delegate to SG/1 can put a design forward.
No. The manual is explicit that it does not address that aspect, which is covered instead by a separate NATO document on safety and suitability assessment for small calibre ammunition.
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