The different substance abuse rehab programs which are offered to drug and alcohol addicted persons in San Pedro, California can differ in several various ways. Quite a few drug and alcohol abuse treatment programs take place in a residential or inpatient setting, where clientele reside the entire time they are in rehabilitation which provides a more conducive rehab setting. Others provide substance abuse rehab services on an outpatient basis which allows for more flexibility, although outpatient centers are not always an appropriate substance abuse rehab service for men and women in San Pedro, CA. who are having difficulties with long term drug or alcohol addiction problems. Regardless of whether inpatient or outpatient substance abuse treatment services are selected, there are also different amounts of time that individuals will be required to continue to be in the drug rehabilitation center. For example, some short-term programs offer programs for 30 days or less, whereas long-term centers will demand at least a 12 week stay.