Each full-time student is expected to take class and laboratory work totaling 12 to 18 credits per semester. CALS students desiring to take more than 18 credits must obtain permission in advance of registration from their advisor and the Office of Academic Affairs by completing the credit overload request form. Students registering for more than 18 credits will be subject to additional tuition and fees. See the Office of the Registrar's website for the definition of maximum credit load in the summer sessions.