The various alcohol and drug abuse rehabilitation programs which are offered to drug addicted persons in Thousand Oaks, California can differ in several various ways. Some drug and alcohol abuse rehabilitation programs are conducted in a residential or inpatient facility, where individuals remain for the duration of their treatment which provides a more conducive rehabilitation environment. Others offer substance abuse treatment services on an outpatient basis which provides a sense of versatility, though outpatient centers are not always a suitable substance abuse treatment program for people in Thousand Oaks, California who are struggling with serious drug or alcohol addiction problems. Whether or not inpatient or outpatient drug and alcohol abuse treatment services are selected, there are varying lengths of time that people will be asked to remain in the drug rehabilitation center. For example, quite a few short-term programs provide services for a month or less, whereas long-term centers will demand at least a 90 day stay.