The different drug and alcohol abuse treatment services which are offered to alcohol and drug addicted persons in Mission Viejo, California can vary in a lot of various ways. Some alcohol and drug abuse treatment services are offered in a residential or inpatient facility, where clientele reside the entire time they are in rehabilitation which offers a more conducive rehab setting. Others offer drug and alcohol abuse rehab services on an outpatient basis which allows for more flexibility, although outpatient centers are not always a suitable alcohol and drug abuse rehabilitation program for individuals in Mission Viejo who are having difficulties with long term addiction difficulties. Whether or not inpatient or outpatient alcohol and drug abuse rehab services are chosen, there are also different lengths of time that people will be expected to stay in the drug and alcohol rehab center. For example, many short-term programs provide programs for 4 weeks or less, while long-term centers will demand at least a 90 day stay.