STANAG 4671
UAV airworthiness requirements
NATO STANAG 4671 is the NATO Standardized Agreement 4671 which is the Unmanned Aircraft Systems Airworthiness Requirements (USAR). It is intended to allow military Unmanned aircraft systems (UAS) to operate in other NATO members airspace.
Page 1 of edition 1 states:If a National Certifying Authority states that a UAV System airworthiness is compliant with STANAG 4671 (and any appropriate national reservations), then, from an airworthiness perspective, that UAV System should have streamlined approval to fly in the airspace of other NATO countries, if those countries have also ratified this STANAG.
Edition 1 was promulgated in September 2009. Edition 2 was promulgated in February 2017.
Draft edition 3 was being commented on (e.g. by the aircraft industry) in Sept 2014, calling attention to slow progress and highlighting concerns. Edition 3 was promulgated in Apr 2019.
Since Edition 2 of STANAG 4671, the detailed engineering and airworthiness requirements have been published separately as AEP-4671. The STANAG now serves primarily as the high-level standardization agreement that references the AEP, rather than including the full technical specification within its text. STANAG 4671 Edition 3 refers to AEP-4671 Edition B for the detailed engineering requirements.
The public source identifies “STANAG 4671” as uAV airworthiness requirements. This brief keeps that definition visible, then builds a research path around STANAG, airworthiness and requirements.
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The citation trail is more important than the brevity of the summary: it shows where individual claims can be examined in context. The source revision retrieved here is dated Jun 5, 2026. The linked authority identifier is Q24589689. 3 of 3 selected statements include explicit references; 3 carry qualifiers and 0 use preferred rank. The first chronological checks are 2009, 2017, 2014 and 2019.
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This entry incorporates text from “STANAG 4671” on English Wikipedia. Contributors are listed in the page history. Text is available under the Creative Commons Attribution-ShareAlike 4.0 License. Selected authority identifiers and statements are retrieved from Wikidata under CC0; their references and qualifiers remain part of the verification path.