What it is
What STANAG 1476 covers
STANAG 1476 is the NATO standardization agreement that gives force to ANEP/MNEP-86, Edition A, the Allied publication setting out technical and medical standards and requirements for submarine survival and escape. A STANAG is not itself a technical specification: it is the agreement by which NATO nations commit to implement one, and the actual requirements sit in the Allied Publication it covers. This STANAG responds to an interoperability requirement stated plainly in the document: "to set up the common basic aspects of technical and medical standards to ensure the minimum conditions for survival in a DISSUB while waiting for rescue or for escape if needed." Read plainly, that means the agreement exists so that a submariner's chances of survival and escape do not depend on which NATO nation built or crews the submarine, not so that a particular piece of equipment is bought to a single national standard.
This is Edition 1, promulgated 28 July 2014. It supersedes four earlier documents: STANAG 1301 (Edition 5), STANAG 1321 (Edition 3), STANAG 1469 (Edition 1), and part of STANAG 1320 (Edition 4).
Who ratifies it, and how it takes effect
The mechanism that matters here: a STANAG binds a nation, not a supplier. Nations "are invited to examine their ratification of the STANAG and, if they have not already done so, advise the NSO of their intention regarding its implementation," and the national decision is recorded in the NATO Standardization Document Database (NSDD). Once ratified, the agreement "is effective upon receipt and ready to be used by the implementing nations and NATO bodies." Partner nations "are invited to adopt this STANAG" on the same terms, without the ratification step that binds a participating nation. A shipyard, an equipment maker or a medical supplier meets ANEP-86 (or this STANAG) only where a contract or a tender brings it in by name, not because the agreement exists on its own.
Reporting and review
Nations "are invited to report on its effective implementation of the STANAG using the form in Annex H to AAP-03(J)"; partner nations report their adoption of the STANAG the same way, using the form in Annex G to the same publication. The STANAG "is to be reviewed at least once every three years," with the result recorded in the NSDD, and nations or NATO bodies may propose changes at any time through a standardization proposal to the tasking authority.
What it does not cover
The document in front of us is the agreement, not the standard. It names no depth limit, pressure limit, time limit or medical threshold for survival or escape: those figures, if the publication sets any, belong to ANEP-86 itself. Participating nations "agree to implement the following standard," named as "ANEP/MNEP-86, Edition A," and that is where the substantive technical and medical requirements live.
How it's evaluated
No certification exists here, and the document names none. What it describes is a national ratification, implementation and review cycle run through NATO's own machinery, not an audit against this STANAG as such. Whatever assessment a shipyard, a piece of escape equipment or a medical procedure actually faces would run against ANEP-86's own provisions and a national programme's or customer's quality clause, not against this document.