A greenkeeper sent me this inquiry:

I have a favor to ask of you. I need a rule of PGA tour course setting. Because I will presentation  PGA tour course setting in my office. So I search for rule .. but i didn't find clear reference.

I think the references in question are on this informative PGA Tour Agronomy page. Specifically, click the Tournament Prep tab, and then the PGA TOUR tab, and then download the Course Conditioning Guidelines document. A couple years old, but should be good enough for making a presentation in the office about PGA Tour conditions.