Skip to main content

Graduate College

Open Main MenuClose Main Menu

Admissions Requirements


Program Prerequisites

All students are required to have completed college-level courses that address the fundamentals and principles of chemistry, biology, and algebra prior to admission.  Applicants must have achieved a grade of "B" or better in this curriculum in order to be eligible for admission into our program.  The recommended cumulative grade point average (GPA) for MS or PhD students is a minimum of 3.0 or higher.


The following prerequisites can be fulfilled at Oklahoma State University:
Algebra: MATH 1513: College Algebra
Biology: BIOL 1114: Introductory Biology
Chemistry: CHEM 1215: General Chemistry


The following prerequisites can be fulfilled at Tulsa Community College (TCC):
Algebra: MATH 1513: College Algebra
Biology: BIOL 1224: Introduction to Biology for Majors
Chemistry: CHEM 1114: Principles of Chemistry or CHEM 1315: General Chemistry I

Application Requirements 


Prospective students applying to the Environmental Science Graduate Program complete an online application with the OSU Graduate College that includes the following:


  • A non-refundable application fee.
  • One original transcript from each college or university attended. For MS or PhD applicants, the cumulative grade point average (GPA) must be 3.0 or higher. All transcripts should be scans of official transcripts showing the college’s or registrar’s original seal and any degrees completed.
  • TOEFL/IELTS (if required to establish English proficiency). A minimum iBT TOEFL score of 79 (or 550 paper based), or a minimum IELTS overall score of 6.5 is required.
  • Current and complete resume or Curriculum Vita. For PhD applicants, this should include the citation of the completed Master’s thesis.
  • A Goal Statement (1-2 pages) explaining how prior academic and professional experiences have prepared the applicant for graduate-level study and how the degree program will contribute to the applicant’s career aspirations and desired areas of competency.
  • Three letters of recommendation. These should be from individuals who know the student professionally, including academic advisors and former professors who can address applicant’s academic record and potential for successful graduate-level work.
  • An Agreement to Advise Statement from an OSU faculty member who will serve as the student’s advisor and Committee Chair; this can be in the form of an email from the advisor to A list of faculty with environmental science research interests is available under the "About Us" menu item. Applicants can be provisionally admitted with a temporary advisor, with the understanding that a permanent advisor must be identified to continue in the program. (Applicants to the PSM-Tulsa program are not required to provide an Agreement to Advise Statement.)
  • No GRE required.


International Applicants

Applicants who are not U.S. citizens may be asked to participate in an interview via Skype or similar videoconferencing tools.

The Graduate College requires a financial statement for international applicants expecting to be F1 or J1 visa holders. This Financial Guarantee documents the availability of sufficient financial resources to meet the student’s prospective educational and living expenses while in the U.S. This document must be completed before a Certificate of Eligibility (I-20 or DS-2019) can be issued. Prospective students should contact an Admissions Officer in the Graduate College for more information.


Application Deadlines

Applicants are urged to submit their application materials well in advance of the deadlines below to ensure sufficient time for recommenders to submit letters of reference.  Only complete, fully-submitted applications will be reviewed for admission. Assistantships are usually available only during the fall admission cycle. International applications may take additional time to process. 


For admission during this term:   submit complete application by this date:
 Spring  September 30th
 Summer  January 30th
 Fall  April 30th


Back To Top