College Credit Plus is an easy way for high school students to get a head start by taking college courses for free. According to state guidelines, you must complete 15 credit hours of Level I courses in order to take more advanced courses through Clark State. These Level I courses are shown below and include courses in information technology, health and other technical fields. Once you have completed the 15 credit hour criteria, you may begin taking Level II course in addition to Level I courses. Level II courses help students progress through their academic programs.