Students taking the GRE, IELTS, and TOEFL should use school code 2660 to send scores to Penn State. Students taking the GMAT should select “Pennsylvania State University – College of the Liberal Arts – MS in HR & ER”. GRE and GMAT scores are valid for 5 years from the date they are taken. TOEFL and IELT scores are valid for two years from the date they are taken. GRE or GMAT scores are NOT required for Penn State undergraduates or graduates.