Iowa Code § 262.47: Fees and charges from students.

When in the opinion of the board of regents, any of the buildings, structures, facilities, property, improvements, equipment, additions or alterations as above authorized are deemed necessary by said board for the comfort, convenience and welfare of the student body as a whole, or for any specified class or part thereof, the board of regents shall have authority to charge and collect, from all students in attendance at the university, college or institution, or from any specified class or part thereof for which such facilities are so deemed necessary, fees and charges for the use and availability of such buildings, facilities, improvements and for the services and benefits made available therefrom. The fees and charges if established shall be applied to the costs of acquisition, construction, maintenance and financing of such improvements.