The different drug and alcohol abuse treatment programs which are available to drug and alcohol addicted individuals in Greenfield, California can vary in many various ways. Quite a few alcohol and drug abuse rehabilitation programs are offered in a residential or inpatient setting, where individuals remain for the duration of their rehabilitation which supplies a more therapeutic rehabilitation environment. Others offer alcohol and drug abuse rehabilitation programs on an outpatient basis which provides a sense of versatility, though outpatient centers are not always an appropriate substance abuse treatment service for people in Greenfield who are having difficulties with serious drug addiction problems. Whether or not inpatient or outpatient substance abuse rehabilitation services are chosen, there are varying lengths of time that people will be expected to remain in the alcohol and drug rehabilitation facility. For instance, some short-term programs offer services for 30 days or less, whereas long-term programs will require at least a 12 week stay.