To become a Nursing Assistant in the State of Indiana, you must first complete a State Approved Nurse Aide Training Program. Second, pass the Nurse Aide competency evaluation consisting of both a written and a skills test. And third, be listed in good standing as a CNA on the Indiana Nurse Aide Registry. A Nurse Aide Training Program consists of a minimum of 30 hours of classroom instruction and 75 hours of clinical training. The training program must be approved by Indiana State Department of Health (ISDH).