What it is
AQAP-4107 is the NATO Allied Quality Assurance Publication that sets out how member nations mutually accept each other's Government Quality Assurance (GQA), and how the wider AQAP package gets used once GQA is requested. It is not a technical specification a supplier's quality system has to meet. It governs the relationship between two National Authorities: the one representing the nation buying a defence product (the delegator) and the one representing the nation where it is made (the delegatee). Each agrees to provide GQA on the other's behalf, on request, so that a buying nation does not need to send its own inspectors into another nation's supplier. The current edition is Edition B, Version 1, promulgated 4 June 2025, superseding Edition A, Version 2, which nations were instructed to destroy under their own local document-destruction procedure. The Aim states plainly that the publication exists "to set forth the principles under which Mutual Government Quality Assurance of defence products is to be performed by the appropriate National Authority of one NATO member nation, at the request of another NATO member nation or NATO Organization."
Who it addresses, and how it binds
The document defines its own parties, and neither is a supplier. The delegator is "the appropriate authority of a NATO Nation or NATO Agency requesting GQA in a NATO supplying Nation," and the delegatee is "the appropriate authority of a NATO Nation performing GQA after acceptance of the RGQA." Behind both sits the National Quality Assurance Authority - "the military service, government agency or organisation within a NATO member state or Partnership for Peace country identified as an authority for NATO quality assurance matters." A supplier only appears once, in the Liability clause, where signing a GQAR statement "will not relieve the supplier from the responsibility for furnishing supplies that meet all specifications of the contract."
It binds nations through a ratified agreement: the NATO Letter of Promulgation records that "the agreement of nations to use this publication is recorded in STANAG 4107." Its effect on a supplier's own contract is one step removed from that. The document commits National Authorities to incorporate "appropriate NATO quality requirements (AQAP)... into contracts where GQA is requested under the terms of this publication," so a supplier meets it only once a GQA request has actually been raised between two nations and an AQAP written into the contract as a result.
Requesting and implementing GQA
Use of mutual GQA is deliberately restricted, not a default: a request is limited "to those cases where quality cannot be satisfactorily verified after receipt and GQA at source is considered essential to reduce or eliminate risk areas that have been identified for the product or the supplier." A request must contain, as a minimum, the delegating authority's own contact references, the contract references, the GQA requirements, the applicable contractual AQAP, and the nature of the risk justifying it, and it must be requested in accordance with AQAP-2070. The delegator must ensure the delegatee receives a copy of the contract and its supporting documents; which AQAP to select is a matter for the separate published guidance in AQAP-4107-SRD.2.
Once implemented, per STANAG 4107 and the AQAP-2070 process, GQA addresses five topics unless the two authorities agree otherwise: notification of unsatisfactory conditions (the delegatee must immediately advise the delegator of major deficiencies or excessive delay risk); the Certificate of Conformity (the delegator may ask the delegatee to sign the "GQAR Statement of GQA"); release for delivery ("Release for delivery of product subjected to GQA shall be as requested by the delegator on the RGQA"); deviation permits and concessions (the delegatee's participation follows the contract and the request); and the delegator's own participation (it must notify the delegatee of any visit to the supplier, so surveillance is coordinated rather than duplicated).
Charges, liability and disputes
GQA is performed free of charge to the delegator unless otherwise agreed; unusually heavy costs can be negotiated, and expenses for product consumed during GQA are borne by the contracting parties. On liability, the document is explicit both ways: signing a GQAR Statement of GQA does not relieve the supplier of responsibility for meeting every specification of the contract, and the delegatee carries no liability for defects found on or after delivery, though it must assist the delegator's investigation. The delegator, in turn, must notify the supplier of any defect with supporting evidence and, where possible, samples of the defective parts. Any dispute the delegator and delegatee cannot settle through routine communication goes through the resolution process set out in AQAP-2070.
Where AQAP-4107 sits in the AQAP hierarchy
Annex A diagrams the whole family as a stack. AQAP-4107 sits at the top, alongside STANAG 4107, labelled "Agreement." Below it come AQAP-2000 ("Policy & Guidance") and AQAP-2070 ("Procedure"), then the "Prime QA Conditions" that a contract actually imposes on a supplier - AQAP-2110, AQAP-2190, AQAP-2131 and AQAP-2310 - and "Supplementary QA Conditions" AQAP-2105 and AQAP-2210, with Standard Related Documents providing supporting information and guidance beneath all of it. AQAP-4107 explains how the whole stack gets invoked between nations; it does not itself contain the requirements lower down the stack.
What the document does not cover
AQAP-4107 sets no requirement on a supplier's own quality management system, design process or production controls - those obligations live in whichever Prime or Supplementary QA Condition the contract names, not here. It also names no certification scheme: what it describes throughout is Government Quality Assurance, "the process by which the appropriate National Authorities establish confidence that the contractual requirements relating to quality are met," performed by one nation's authority for another's, never an accredited body auditing to award a certificate.