An H-3 classification applies to an alien who is coming temporarily to the United States:
(1) As a trainee, other than to receive graduate medical education or training, or training provided primarily at or by an academic or vocational institution, or
(2) As a participant in a special education exchange visitor program which provides for practical training and experience in the education of children with physical, mental, or emotional disabilities.
They ran out of slots for the 10/30 oath about 7 people before me, so after that all of us got the N652 with "civics test/English passed" and "congratulations; it seems you are eligible...etc etc checked off, and when they handed it to to us they said our oath letters will be in the mail soon.