What it is
What STANAG 2597 covers
STANAG 2597 is the NATO standardization agreement that gives force to ATrainP-4, Edition B, the Allied publication on training in NATO rules of engagement (ROE). A STANAG is not itself a training curriculum: it is the agreement by which NATO nations commit to implement one, and the actual training content sits in the Allied Publication it covers. The interoperability requirement behind it is stated plainly: "To enhance understanding of MC 0362/2 NATO Rules of Engagement as a component of the NATO operational planning process by providing a NATO standard for training in NATO rules of engagement."
This is Edition 2, promulgated 2 September 2022. The cover states it "supersedes the following document: STANAG 2597, Edition 1, dated 4 May 2015."
Who ratifies it, and how it takes effect
A STANAG binds a nation, not a supplier or a training provider directly. 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 ratification and implementation," and the response is recorded in the NATO Standardization Document Database (NSDD). Ratification is not the same as implementation: this STANAG "is implemented when nations have incorporated the procedures set down in this agreement into national orders or instructions." Once that has happened, "Allies and NATO bodies shall provide implementation details through the electronic reporting tool," while "Partner nations are invited to provide their implementation details" the same way, a lighter invitation rather than a standing obligation. No NATO-wide start date is fixed: the document's own "NATO Effective Date" field reads "Not applicable."
What implementation actually means
Ratifying nations fold ATrainP-4 into their own training programmes rather than adopting a single document unchanged. To implement it, participating nations update their training programmes to reflect the changes MC 0362/2 makes, prepare training that shows how the NATO Operations Planning Process develops NATO rules of engagement toward a mission's desired end-state, train personnel who may take part in NATO-led operations on how NATO rules of engagement apply across command and control, air and missile defence, aviation planning, and land, air, maritime, cyber and special operations, give dedicated training to the commanders whose guidance shapes NATO mission design, and run training and exercises that combine policy, operational and legal factors. None of that content, what a rule of engagement actually permits or restricts, is in this STANAG: it sits in MC 0362/2 and in ATrainP-4 itself.
How it's reviewed
STANAG 2597 "is to be reviewed in accordance with AAP-03," with the result "recorded within the NSDD." No certification exists here, and the cover names none: what it describes is a national ratification, implementation and review cycle run through NATO's own machinery, not an external audit.