以下是引用jami在2004-8-26 20:44:07的发言：
before ac21(2000-2001?), all h-1 use quote, even academic.
suppose you apply h1 that year, you use quota already.

now lots if people said that if you have an industry h1,then ->h4/f1->h1 again, won't occupy quota coz u occupied it once already and hasn't use it up.