Open the online application and fill out Section I according to the instructions. Most applicants will fall into one of two categories in the application: US Student or International Student.
If you know the faculty member(s) with whom you wish to work, list them in your statement of purpose.
Online applications are submitted electronically.
International Students must submit a TOEFL or IELTS score, and the submission of a GRE score is recommended. The GRE and TOEFL code for Mississippi State University is 1480. If you can support your own studies, you should submit a Declaration of Financial Support form. All applicants are considered for financial aid and completion of this form will NOT reduce your chance of receieving aid. U.S. Students do not need to supply any test scores or the support form.

A complete application includes: 3 letters of reference, official university transcript(s), a statement of purpose (brief discussion of why you want to study for a graduate degree in chemistry), and payment of the application fee.
To enter our program, a student must have:

A bachelor's degree in chemistry (or a related area with additional course work equivalent to the requirements for a traditional chemistry major)
A minimum undergraduate GPA of 2.75/4.0 over the last two years.
Have a bachelor's degree from an English-speaking country
or score a minimum of 477 on the paper-based test of English as a foreign language (TOEFL) exam exam (153 on the computer-based test, or 53 on the internet based test)
or score 4.5 on the International English Language Testing Service (IELTS) exam.
A student who has not met one or more of these requirements may be admitted as an unclassified or provisional student. Check the Bulletin of the Graduate School for further details.
Financial support is available for entering students, but foreign students with low language scores (< 550 TOEFL paper, 213 TOEFL computer, 79 TOEFL iBT, or 6.0 IELTS) are unlikely to be awarded a TA during their first year of study.