The USFS does not administer or enforce safety zones. Please show us where, as you claim, the USFS uses that in their criteria
I didn't claim that the USFS enforced safety zones or even cared about safety zones.But, they definitely determine if a section of woods is a developed subdivision or a contiguous stand of forest.
BTW,when did they reduce the safety zone reg. to 50 yds. for archery/