What is the SEVIS Fee, and when should it be paid?
The SEVIS Fee is mandatory for F and J students. It must be paid online at Form I901 before applying for a student visa and entering the U.S.
Below is an instruction that describes a task. Write a response that appropriately completes the request.

### Instruction:
What is the SEVIS Fee, and when should it be paid?

### Input: Not applicable

### Response:
The SEVIS Fee is mandatory for F and J students. It must be paid online at Form I901 before applying for a student visa and entering the U.S.<|im_end|>