Look for links at the websites for English Proficiency or Intensive English Program. That should help you find this sort of information. Here is one example for you to look at. Depending on the TOEFL/IELTS score, the student would be placed into full-time English or have some English and some regular classes. https://www.mnsu.edu/celp/curriculum.html
It is important to know that some colleges and universities do not have this kind of English program on campus, and even if they do, each place determines its own cut-offs for placement into an IEP.