I'd keep a hardcopy (not just an electronic backup) of all important protocols.
"An electronic lab notebook (ELN) is a software tool for documenting laboratory experiments, research data, and processes. ELNs are set to replace paper lab notebooks as part of the ongoing digital transformation"
https://journals.plos.org/ploscompbiol/article?id=10.1371/journal.pcbi.1012170
As you probably know, we use word doc for our notebooks saved on a networked location.
Printing should happen monthly, spot-checks of the digital copy are incorporated into our workflow.
When someone shows me their data, they have to show the digital copy.
I spot check the hard copies the first week or so of the month, so people know its coming.
