You will have to take TOEFL and also the speech portion to prove that you can understand and speak well in English, unless of course, English is your native language. After you have satisfied these requirements, you can sit for the NCLEX-RN. However, make sure you are first licensed in your country, otherwise your application will be rejected if your own country refuses to license you as a RN.

I think you may also have to do a background/criminal history check as a requirement before you write the NCLEX-RN. they will require this checks from the region you hail from.

I’m not a nurse in the states, but have friends who are and I know a little bit about what some of them went through.