Also: there’s a guidance document for authorities here: https://ec.europa.eu/newsroom/just/document.cfm?doc_id=47889
EU law does not work with exact codified procedures, which I understand is more common in US. So indeed, you will find guidance but not exact procedure (though it seems to be clear enough to me)
EDIT: article 83 instead of 82
That's a blatant untruth.