The different substance abuse rehab services which are offered to alcohol and drug addicted persons in Union City can differ in several different ways. Some substance abuse rehab services take place in a residential or inpatient setting, where clients remain the entire time they are in treatment which provides a more conducive treatment setting. Others provide substance abuse rehabilitation programs on an outpatient basis which allows for more flexibility, though outpatient centers may not be a suitable alcohol and drug abuse rehabilitation program for individuals in Union City, CA. who are struggling with serious drug addiction problems. Whether or not inpatient or outpatient alcohol and drug abuse rehab programs are chosen, there are also different amounts of time that people will be required to stay in the drug rehabilitation program. For instance, quite a few short-term programs provide programs for a month or less, whereas long-term facilities will demand at least a 90 day stay.