The various substance abuse rehabilitation programs which are available to drug and alcohol addicted people in Chester Springs, PA. can differ in many different ways. Quite a few substance abuse treatment services are conducted in a residential or inpatient location, where clientele reside the entire time they are in rehab which provides a more therapeutic rehabilitation environment. Others provide substance abuse rehabilitation programs on an outpatient basis which provides a sense of flexibility, although outpatient facilities may not be an appropriate substance abuse rehab service for people in Chester Springs, PA. who are struggling with long term addiction difficulties. Whether or not inpatient or outpatient substance abuse treatment services are selected, there are also different amounts of time that men and women will be expected to continue to be in the drug and alcohol rehab program. For instance, many short-term programs provide programs for 30 days or less, while long-term programs will call for at least a 90 day stay.