The different drug and alcohol abuse rehab programs which are offered to alcohol and drug addicted people in Ardsley On Hudson can vary in many different ways. Some drug and alcohol abuse treatment services are conducted in a residential or inpatient facility, where clients remain for the duration of their rehab which provides a more therapeutic treatment environment. Others provide substance abuse rehab programs on an outpatient basis which allows for more versatility, although outpatient centers may not be an appropriate drug and alcohol abuse rehabilitation program for individuals in Ardsley On Hudson who are having difficulties with long term drug or alcohol addiction issues. Whether inpatient or outpatient alcohol and drug abuse treatment services are selected, there are varying lengths of time that people will be asked to continue to be in the drug and alcohol treatment center. For instance, quite a few short-term programs provide services for 4 weeks or less, whereas long-term centers will require at least a 12 week stay.