TOEFL Applicants who earned their undergraduate degree in a country in which English is not the official and widely spoken language must submit either the TOEFL,  IELTS, or PTE Academic test with their application. Only one English language test is required.An exception is made for applicants who have earned an undergraduate degree from a US institution and completed their study on campus in the US or will complete a Master's degree in the United States before enrollment, in this case the applicant is not required to submit TOEFL, IELTS, or PTE Academic scores for admission.There are no minimum test score requirements to apply for admission consideration. However, admitted students that were required to take the TOEFL, IELTS, or PTE Academic test for admission are encouraged and may be advised to deal with verbal and/or written English proficiency needs by utilizing the resources available for them through Columbia University’s American Language Program. It may be necessary to improve your English proficiency if you scored:599 or lower on the TOEFL paper-based test; or99 or lower on the TOEFL internet-based test; IELTS Applicants who earned their undergraduate degree in a country in which English is not the official and widely spoken language must submit either the TOEFL,  IELTS, or PTE Academic test with their application. Only one English language test is required.An exception is made for applicants who have earned an undergraduate degree from a US institution and completed their study on campus in the US or will complete a Master's degree in the United States before enrollment, in this case the applicant is not required to submit TOEFL, IELTS, or PTE Academic scores for admission.There are no minimum test score requirements to apply for admission consideration. However, admitted students that were required to take the TOEFL, IELTS, or PTE Academic test for admission are encouraged and may be advised to deal with verbal and/or written English proficiency needs by utilizing the resources available for them through Columbia University’s American Language Program. It may be necessary to improve your English proficiency if you scored:6.5 or lower on the IELTS GRE There are no minimum test score requirements to apply for admission.The average GRE scores for past entering classes, in recent years, rank 64% or above for the verbal and writing sections, and above 91% for the quantitative section. Therefore, it is recommended that your scores be comparable. You can check the percentiles provided along with your scores from ETS to find your ranking and compare. When entering your scores onto the online application be sure to enter your score on each section of the test and to include the percentiles. GMAT Applicants applying to graduate programs within the departments of Industrial Engineering and Operations Research or the Data Science Institute are encouraged to submit their GMAT scores along with the GRE if they have taken the test.

PS There is no minimum or maximum length for the personal statement. Brevity is preferred. The statement serves as both a writing sample and opportunity for you to explain, why you are applying, what makes you a good fit, and anything that may be unclear elsewhere on your application. Fee Non-refundable application fee ($85) RL Three (3) letters of recommendation.Your references are received through the online application after you submit it. We do not accept hard copy reference letters by mail nor via email to individuals at our School or via our office email address. References sent this way will not be reviewed. Exceptions are not made. If your reference provider has trouble submitting their reference for you please contact the Office of Graduate Student Affairs for assistance at: seasgradmit@columbia.edu A letter that addresses recollections of favorable personal interactions in a classroom or a laboratory setting is very valuable. Letters from professors in the student's department who have direct experience with the student and can clearly compare him/her to others in this class or prior classes are effective. Also, letters from research supervisors in the student's chosen area are important. Research-oriented letters are encouraged for those applying at the Ph.D. level. Transcript Translation of the official transcript(s) is required if the institution(s) you attended does not issue transcripts in English. The transcript translation must be conducted by a reputable service and must be sent in addition to the official transcripts. Personal transcript translations will not be accepted.One (1) official transcript from every post-secondary institution attended, sent from the institution, issued in English in a sealed envelope.Please mail your official transcripts after you receive your offer of admission to the Office of Graduate Student Affairs located at: Attention: Admissions Assistant Office of Graduate Student Affairs 500 W. 120th Street, MC 4708 Suite, 530 Mudd New York, NY 10027