What additional applications are typically required for obtaining employment authorization in the United States?
Separate applications like Optional Practical Training (OPT) or Curricular Practical Training (CPT) are usually needed to obtain employment authorization.
Below is an instruction that describes a task. Write a response that appropriately completes the request.

### Instruction:
What additional applications are typically required for obtaining employment authorization in the United States?

### Input: Not applicable

### Response:
Separate applications like Optional Practical Training (OPT) or Curricular Practical Training (CPT) are usually needed to obtain employment authorization.<|im_end|>