The various alcohol and drug abuse treatment services which are available to alcohol and drug addicted persons in Greenville, California can vary in a lot of different ways. Some substance abuse rehabilitation services take place in a residential or inpatient facility, where clientele remain the entire time they are in rehab which supplies a more therapeutic rehab environment. Others provide drug and alcohol abuse treatment programs on an outpatient basis which provides a sense of versatility, though outpatient facilities may not be a suitable drug and alcohol abuse rehab service for individuals in Greenville who are struggling with serious drug or alcohol addiction difficulties. Whether inpatient or outpatient substance abuse treatment services are selected, there are also different amounts of time that men and women will be expected to remain in the drug rehab facility. For example, quite a few short-term programs provide programs for a month or less, whereas long-term centers will require at least a 3 month stay.