The Promise is intended to cover tuition and mandatory fees based upon an average of 15 credit hours per semester. Students may register for more or less credits as long as they are still enrolled full-time of at least 12 credit hours. The State of IL MAP Grant is pro-rated for enrollment of less than 15 credits, per state regulations. However, UIS scholarships and grants will not be increased to cover more than 15 credits per semester, nor will it be decreased if registered for between 12-15 credits.