The diverse drug and alcohol abuse treatment programs which are available to alcohol and drug addicted persons in East Irvine, CA. can differ in many different ways. Some substance abuse rehab programs are conducted in a residential or inpatient facility, where clients reside the entire time they are in rehab which supplies a more conducive rehab environment. Others offer alcohol and drug abuse rehab services on an outpatient basis which provides a sense of versatility, though outpatient facilities are not always a suitable drug and alcohol abuse rehabilitation service for men and women in East Irvine, CA. who are struggling with serious addiction issues. Whether inpatient or outpatient drug and alcohol abuse rehab services are chosen, there are varying amounts of time that individuals will be asked to continue to be in the alcohol and drug rehab facility. For example, quite a few short-term programs offer programs for 4 weeks or less, while long-term facilities will require at least a 90 day stay.