On the VS website
here.
Domestic First Class I fares <2000 miles is wrong though as you still get 40 TP’s for that.
It’s got mixed up with business/Delta One I fares (which is the same fare type as First Class) it’s just that Delta do sell Delta One full lie flat seats rather than first Class seats on some of their longer domestic routes (for example DL sell Delta One with fully lie flat seats on their LAX>HNL route)