My company's issued LOW VIS OPS CHECKLIST does not mention wipers
If you say it's a
checklist, I assume this is a list of items you have to run through, during normal ops, before each CAT3 approach, to ensure nothing has been forgotten?
You must have a "List of Required Airborne Equipment" as well, buried in your OM-A somewhere.
This is the list you should refer to if something is broken inflight.