Nonimmigrants who departed the United States for brief travel to Canada, Mexico, or an adjacent island (for F and J nonimmigrants) for thirty days or less;
Nonimmigrants with a valid (unexpired) admission stamp or paper Form I-94, Arrival/Departure Record, endorsed by DHS.
One photo passport size (size 1.5 x 1.3/4 inches), in color, no glasses
签证照片;
Proof of address in USA (leasing, bills with magnetic band issued by US Postal Service, etc)
美国住址证明,水电费的账单或者租约(虽然最后签证官又把这页还给我了);
Original financial records (last six months of your bank statements in US Dollars, last six months of pay stubs, employment letter specifying your position and salary and the last six months of international credit card statements. You can also submit original and official documents proving the ownership of a property/company/business and one photocopy of them