Tex. Education Code § 51.975

(a) A public institution of higher education may make the institution's classrooms not scheduled for use by the institution or by students, student organizations, or faculty of the institution between 5 p.m. and 10 p.m. on one or more weekdays or between 8 a.m. and 5 p.m. on one or more Saturdays available for that day to another public junior college on request for teaching courses in the core curriculum, as defined by Section 61.821, or continuing education courses.

(b) A public institution of higher education that under Subsection (a) makes a classroom available to another institution shall continue to make that classroom, or a comparable classroom, available to the other institution for the duration of the semester or other academic term.

(c) An institution of higher education may charge another institution for the use of a classroom under this section at a rate not to exceed the rate permitted for this purpose as determined by the Texas Higher Education Coordinating Board. The coordinating board shall establish those rates in an amount to reimburse the host institution for utility costs and other costs, such as maintenance and custodial services, based on the infrastructure formula funding that the host institution would receive if teaching a course in that space itself for that time.