TOEFL TOEFL examinations are required of all applicants whose native language is not English or who have not received a bachelors degree from an accredited college or university where the primary language of instruction is English. Harvard University’s Graduate School of Arts and Sciences sets the regulation that "a minimum score of 80 on the Internet based test (IBT) on the TOEFL is required for consideration by the Graduate School." IELTS scores cannot be accepted in place of the TOEFL. Scores are valid for 2 years. Applicants who hold a Master’s degree from from an accredited college or university where the primary language of instruction is English are not eligible for the TOEFL waiver. If your scores are more than 2 years old, you must re-take the TOEFL exam. IELTS GSAS does not accept the International English Language Testing System (IELTS). GRE GRE scores must be no more than 5 years old at the time of application (if you are on the cusp of this criteria, we suggest retaking the GRE). The LSAT or MCAT cannot be accepted in place of the GRE. Official scores must be reported to the Graduate School. (GSAS Code for ETS: 3451); there is no subject or department code.