Oakton accepts applications every October (normally). For example, the next application cycle will open from October 1, 2016 - January 23, 2017 (Fall 2017). To answer your question, Harper College accepts students for both fall and spring. If I'm not mistaken, the only courses you have to retake are the sciences. Just make sure you call the colleges academic office and ask tons of questions. Your definitely on the right track by using allnurses, it helped me out big-time.