You can't find as its not there. To quote Charlies Rule
It doesn?t say what you think it says,
Nor what you remember it to have said,
Nor what you were told that is says,
And certainly not what you want it to say.
However some eyewash stations have a sink and that could be a requirement for a GFCI.
And this is wet location so a wet location cover may be required.
Must be a new requirement. Don't see it in 2005.