For post-doctoral fellows, we will file for either the H-1B or the J-1 Exchange Visitor. In some situations we will also have post-docs start on the F-1 Optional Practical Training or on the J-1 Academic Training.
For visiting scholars with primary funding from sources other than WPI, we will issue documents for J-1 visa as an Exchange Visitor.
For short term (2-4 weeks) visits for the purpose of conference/workshop participation, faculty collaboration etc. which does not include any payment from WPI, we will sometimes suggest the Visitor Category.
Non-degree students always come on the J-1 Exchange Visitor visa.