The different substance abuse rehab services which are offered to drug addicted persons in Riviera can vary in a lot of different ways. Some alcohol and drug abuse rehabilitation programs are offered in a residential or inpatient facility, where clients remain for the duration of their treatment which provides a more conducive rehabilitation environment. Others provide alcohol and drug abuse rehabilitation services on an outpatient basis which allows for more flexibility, though outpatient programs are not always a suitable alcohol and drug abuse treatment service for people in Riviera who are struggling with serious addiction issues. Whether inpatient or outpatient alcohol and drug abuse rehabilitation programs are chosen, there are varying amounts of time that people will be expected to remain in the drug treatment program. For example, many short-term programs offer programs for 4 weeks or less, whereas long-term centers will demand at least a 12 week stay.