The fine points of the two standards
Two standards matter for the documents written here: the one an archive holds a document to for decades, and the one a printing works holds a file to before it goes on the press. Nearly all of what either of them asks for is settled, and settled by a program from outside. A few points are still being checked, and they are written down here rather than left for you to find out later.
What settles a rule here
The team works with a checker that states every rule it applies, article by article, in files anybody can open. A rule goes into the engine because that checker states it, and the finished document is put back in front of the same checker afterwards. That one program is what nearly all of this rests on.
It is also why a refusal always names something. The engine turns a document away by naming the article it could not satisfy, and that article can be looked up word for word by whoever asked for the document.
What is still being checked
Checks are running on a handful of points of both standards, the kind that have to be read off the published text word for word before anything is said about them. The engine writes what it can answer for and refuses the rest, so a document that comes out is a document it stands behind; what is still open is how much more it will be allowed to write.
The one worth naming: whether a file meant for a press may carry another file inside it, the way an archival invoice carries the data of that invoice. Today those are two documents, each holding up on its own terms, and they are sold that way.
Ask about the rule that decides your own case
If one rule of either standard decides something in your own project, write to us and ask about that rule. The answer comes from the people who write the engine, on your own case, and it says what is settled and what is being checked.
Where to look next
What an archive still takes in twenty years What a printing works asks of a file The program that decides whether a document complies