Many of the RCEs have audio or video preparation programs available through the Student Guide to Success . See the paragraph on CLEP General for ordering information. CLEP examinations are free of charge to active-duty personnel, reservists, spouses of active duty and reserve personnel, and civilian employees of the Coast Guard. These exam programs afford you the opportunity to earn college credit, free of charge. See your ESO and check it out.
Study guides are available for all the exams.
However, you can go around the network and get them off the web. The courses are listed in the Student Guide to Success and the order form is at the back of the publication.