An update:
I also sent an email to the USFA and within a day had a response from Carla Mae Richards including the entry form (actually a promise to get the form, and the form in a second email). The form is expected to be posted to the site soon. Incidently, according to both Carla Mae and the form itself the entry deadline is March 16th. This is different from what the world cup schedule on usfencing.org says. Possibly the 2/22 deadline is for foreign fencers?
Anyway, if other people are looking for this form expect it to be available shortly.
-B
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"Oh but you can't expect to wield supreme executive power just because some watery tart threw a sword at you!"