What are the English proficiency exam requirements for international students?
International students must take either the IELTS, TOEFL IBT, or the Duolingo English Test DET if they are residents of a nonEnglishspeaking country, or their first andor primary language is not English, or they have resided in the United States for less than three years.
Below is an instruction that describes a task. Write a response that appropriately completes the request.

### Instruction:
What are the English proficiency exam requirements for international students?

### Input: Not applicable

### Response:
International students must take either the IELTS, TOEFL IBT, or the Duolingo English Test DET if they are residents of a nonEnglishspeaking country, or their first andor primary language is not English, or they have resided in the United States for less than three years.<|im_end|>