When a student registers at more than one public institution of higher education at the same time, the student’s tuition charges shall be determined in the following manner:
(1) The student shall pay the full tuition charge to the first institution at which the student is registered; and in any event the student shall pay an amount at least equal to the minimum tuition specified in this code.
(2) If the minimum tuition specified in this code for the first institution at which the student is registered is equal to or greater than the minimum tuition specified in this code for the second institution at which the student is registered concurrently, the student shall not be required to pay the specified minimum tuition charge to the second institution in addition to the tuition charge paid to the first institution, but shall pay only the hourly rates, as provided in this code, to the second institution.
(3) If the minimum tuition specified in this code for the first institution at which the student is registered is less than the specified minimum tuition charge at the second institution (that is, if the second institution has a higher minimum tuition charge specified in this code), then the student shall first register at the institution having the lower minimum tuition and shall pay to the second institution only the amount equal to the difference between the student’s total tuition charge at the second institution and the student’s total tuition charge at the first institution, but in no case shall the student pay to the second institution less than the hourly rates as provided in this code.
(4) If a student is considered to be a Texas resident and therefore qualified to pay Texas resident tuition rates by one institution at which the student is registered, the student shall be considered a Texas resident at each of the institutions at which the student is concurrently registered for the purposes of determining the proper tuition charges. Nothing in this subdivision shall be so construed as to allow a nonresident to pay resident tuition except at institutions covered by § 54.231.