It's a two year look back, Things that are worth large amount of points are calling in for training, before reserve block, after a reserve assignment, and within four hours of show. I do not know if this is the full list. Every other thing is worth one. I do not know the number of points that triggers the note request.

Calling in sick after a reserve assignment in the past has also triggered a scheduling irregularity request, in which they dont ask for a note, but do ask for an explanation. Don't know if that's still the case with the new system.