Do I need to sit for TOEFL or SAT?
As Nate Eldredge already mentions in a comment, there will be a statement somewhere on the application page that specifies who needs to provide language scores as part of their application and who doesn't. Since schools receive large numbers of applications, there isn't really any leeway for special cases: Just follow the letter of the application requirements. If this requires that you to take the TOEFL or SAT, then that's what it is -- whether you think that's fair or necessary or required is a question that's entirely unimportant.