The different drug and alcohol abuse treatment programs which are offered to alcohol and drug addicted people in Mill Valley, California can vary in many different ways. Some substance abuse treatment services are offered in a residential or inpatient setting, where clients remain the entire time they are in rehabilitation which supplies a more therapeutic rehabilitation environment. Others offer drug and alcohol abuse rehabilitation programs on an outpatient basis which allows for more versatility, although outpatient facilities may not be a suitable alcohol and drug abuse treatment program for people in Mill Valley who are struggling with long term addiction difficulties. Whether or not inpatient or outpatient drug and alcohol abuse rehab services are selected, there are also different amounts of time that people will be asked to continue to be in the drug and alcohol treatment center. For example, some short-term programs provide services for 4 weeks or less, while long-term facilities will require at least a 90 day stay.