Every substance on your site is written down somewhere. The sheet
says what it is, what it does to a person, and what to do when it
gets out. All of that is correct, and all of it is in a folder.
None of it helps in the aisle. There, someone has to notice that a
drum is standing where it does not belong, that a smell is new,
that the fire door is propped open with a pallet. Noticing is not
knowledge. It is habit, and habit comes from having stood in front
of it before.
Your instruction is where the knowledge goes, and it stays exactly
as it is. This is for the part of it that has never worked by being
read out.