The different alcohol and drug abuse rehabilitation services which are available to alcohol and drug addicted people in Dauphin, PA. can vary in several various ways. Quite a few substance abuse rehab programs are conducted in a residential or inpatient location, where clients reside the entire time they are in treatment which offers a more therapeutic rehab environment. Others offer substance abuse rehab services on an outpatient basis which allows for more versatility, although outpatient programs may not be an appropriate alcohol and drug abuse rehabilitation service for people in Dauphin, PA. who are struggling with serious drug addiction problems. Regardless of whether inpatient or outpatient drug and alcohol abuse rehab programs are selected, there are varying amounts of time that individuals will be asked to stay in the drug and alcohol rehabilitation program. For instance, many short-term programs provide services for 4 weeks or less, whereas long-term centers will demand at least a 90 day stay.