The various drug and alcohol abuse rehabilitation services which are offered to drug addicted persons in Newark, California can differ in many different ways. Some substance abuse rehabilitation programs are conducted in a residential or inpatient setting, where clientele remain the entire time they are in rehab which supplies a more conducive treatment setting. Others offer drug and alcohol abuse treatment programs on an outpatient basis which provides a sense of versatility, though outpatient programs may not be a suitable substance abuse rehabilitation program for individuals in Newark who are struggling with serious drug addiction difficulties. Whether or not inpatient or outpatient substance abuse rehab services are selected, there are varying amounts of time that individuals will be asked to remain in the drug and alcohol rehab facility. For example, many short-term programs provide services for a month or less, whereas long-term centers will require at least a 12 week stay.