The diverse substance abuse rehabilitation services which are offered to drug addicted individuals in Oak Park can differ in several different ways. Some substance abuse rehabilitation programs are conducted in a residential or inpatient setting, where clientele reside the entire time they are in rehabilitation which provides a more conducive rehab environment. Others offer alcohol and drug abuse rehab programs on an outpatient basis which allows for more flexibility, although outpatient centers are not always a suitable substance abuse rehabilitation service for men and women in Oak Park who are having difficulties with serious drug addiction problems. Whether or not inpatient or outpatient substance abuse treatment programs are chosen, there are also different lengths of time that individuals will be asked to remain in the drug rehabilitation center. For instance, some short-term programs provide programs for 30 days or less, while long-term programs will require at least a 90 day stay.