IELTS Academic-6.5 or higher (minimum of 6.5 in each sub score)
TOEFL IBT-International applicants must also have a TOEFL score of 80 or higher
TOEFL Paper Based-550 or higher.
To be considered for admission in full graduate standing, applicants must have:
(a) a four-year bachelor's degree (or equivalent) from a regionally accredited college or university. Exceptions to standard accreditation may be granted for applicants with international degrees, including applicants with three-year degrees from institutions in Europe participating in the Bologna Process.
(b) a GPA of at least 3.00 (on a 4.00 scale) in their undergraduate degrees.
Application requirements:

Three recommendations from people who know the prospective student's academic record and potential for graduate study. Interfolio may be used.
Click here for the English Proficiency Requirements for International Students
The GRE is not required.
Statement of purpose (personal statement) should focus on research accomplishments and aspirations, and may include figures and chemical structures. Please also identify 3-5 specific faculty research programs of interest to you, why they are of interest (scientifically), and what skills and background you possess that will advance research progress in these programs. There is no maximum length but it should be a minimum of 1-2 pages.
Minimum 3.0 cumulative GPA
Legible, unofficial copies of transcripts should be uploaded to the application for review purposes. Upon recommendation of admission, the University requires that official transcripts that document all prior conferred/awarded degrees be on file in the student's permanent record at NC State. The transcript(s) must include a statement of any degree(s) awarded.