I know that at Division tournaments it's the top 25% qualify for Div 2 & Div 3. The remaining 25% qualify for Div 3 only with a minimum of three people qualifing. Then the top 25% only qualify for any of the Y14 and Cadet events. A long time ago the only difference was that a minimum of 8 qualified at Sections for the div 1A div 2 & U19. Things change so I don't know if that's still true.
What I hope to see is that at least 15 fencers fence in the Sr. Women's Epee event to make it at least a B1 event. Right now the event is two women short. I beg any women epeeists in the pacific northwest section to sign up!!