The various drug and alcohol abuse treatment programs which are offered to drug addicted people in Berlin can vary in several various ways. Some alcohol and drug abuse treatment services are conducted in a residential or inpatient setting, where clients remain for the duration of their treatment which provides a more therapeutic treatment setting. Others provide substance abuse rehabilitation programs on an outpatient basis which provides a sense of flexibility, although outpatient centers may not be an appropriate substance abuse treatment service for men and women in Berlin who are having difficulties with long term drug addiction difficulties. Regardless of whether inpatient or outpatient alcohol and drug abuse rehab services are selected, there are varying lengths of time that people will be asked to continue to be in the alcohol and drug rehab program. For example, many short-term programs offer programs for a month or less, while long-term facilities will require at least a 12 week stay.