(1) The board of trustees of the University of Tennessee is authorized to establish from time to time reasonable and appropriate rules and regulations defining residency of students, which, when approved by the governor, shall be used for the purpose of determining whether or not out-of-state tuition shall be charged to a student enrolling in the University of Tennessee.
(2) The board of trustees of the University of Tennessee may classify a student as a Tennessee resident and charge the student in-state tuition, if the student is a citizen of the United States, has resided in Tennessee for at least one (1) year immediately prior to admission and has: Graduated from a Tennessee public secondary school;
(3) Graduated from a private secondary school that is located in this state; or
(4) Earned a Tennessee high school equivalency diploma.
(5) Subdivision (b)(1) shall not be construed to limit the authority of the board of trustees under subsection (a) to establish other reasonable and appropriate rules and regulations defining additional categories of residents.