The test required is GRE and TOEFL IBT. Entry level is the course for students who want to pursue masters in occupational therapy without having the bachelors in occupational therapy, for which the duration is 5 yrs. Whereas in Post professional is meant for students already having relevant bachelors in OT where the duration is 2 yrs. In USA there are two intakes- Spring (Jan) and Fall (August). Most of MS post professional courses start in fall intake. Universities are as follows: Boston University, Columbia University, Tufts University, University of Southern California, University of WisconsinMadison & University of Pittsburgh.