The various substance abuse rehab services which are available to drug addicted individuals in Santa Ana, California can differ in several various ways. Quite a few alcohol and drug abuse rehab programs are offered in a residential or inpatient setting, where clients remain the entire time they are in rehabilitation which offers a more conducive rehabilitation setting. Others provide alcohol and drug abuse treatment services on an outpatient basis which allows for more flexibility, although outpatient centers may not be an appropriate substance abuse rehabilitation program for individuals in Santa Ana who are struggling with serious drug addiction issues. Whether or not inpatient or outpatient drug and alcohol abuse rehab services are selected, there are varying lengths of time that men and women will be required to remain in the drug and alcohol rehab program. For instance, quite a few short-term programs provide services for 4 weeks or less, while long-term centers will require at least a 12 week stay.