The different alcohol and drug abuse treatment services which are offered to alcohol and drug addicted persons in Weston, PA. can differ in many various ways. Some drug and alcohol abuse rehab programs are conducted in a residential or inpatient location, where clients remain the entire time they are in treatment which offers a more conducive rehabilitation environment. Others provide drug and alcohol abuse rehabilitation programs on an outpatient basis which allows for more flexibility, although outpatient facilities may not be a suitable substance abuse rehabilitation service for individuals in Weston, PA. who are having difficulties with long term addiction difficulties. Whether or not inpatient or outpatient drug and alcohol abuse rehabilitation services are chosen, there are also different lengths of time that men and women will be expected to stay in the drug and alcohol rehab center. For instance, many short-term programs provide programs for 4 weeks or less, while long-term programs will require at least a 3 month stay.