The various substance abuse rehabilitation programs which are available to drug and alcohol addicted persons in Greenfield, Illinois can vary in a lot of various ways. Quite a few alcohol and drug abuse rehabilitation services take place in a residential or inpatient facility, where individuals reside the entire time they are in rehab which offers a more therapeutic treatment environment. Others provide drug and alcohol abuse rehabilitation services on an outpatient basis which provides a sense of flexibility, although outpatient facilities may not be an appropriate drug and alcohol abuse treatment service for individuals in Greenfield, Illinois who are struggling with long term drug addiction issues. Whether or not inpatient or outpatient substance abuse rehabilitation services are chosen, there are varying lengths of time that people will be asked to remain in the alcohol and drug rehabilitation program. For instance, some short-term programs provide services for 4 weeks or less, whereas long-term facilities will call for at least a 3 month stay.