The different alcohol and drug abuse treatment services which are available to alcohol and drug addicted individuals in Canadian can differ in a lot of different ways. Quite a few drug and alcohol abuse rehabilitation services are conducted in a residential or inpatient facility, where clientele reside the entire time they are in rehabilitation which provides a more therapeutic rehab environment. Others provide substance abuse rehab services on an outpatient basis which provides a sense of versatility, although outpatient facilities may not be a suitable drug and alcohol abuse treatment service for individuals in Canadian who are struggling with serious drug or alcohol addiction issues. Whether or not inpatient or outpatient substance abuse treatment programs are selected, there are varying lengths of time that men and women will be asked to continue to be in the drug and alcohol rehabilitation center. For example, many short-term programs offer services for a month or less, while long-term centers will call for at least a 12 week stay.