The various drug and alcohol abuse treatment services which are available to drug addicted persons in Greenbrae can vary in many various ways. Quite a few drug and alcohol abuse rehabilitation programs are conducted in a residential or inpatient setting, where individuals reside the entire time they are in rehab which offers a more conducive treatment environment. Others provide substance abuse treatment services on an outpatient basis which allows for more flexibility, although outpatient facilities are not always a suitable substance abuse rehabilitation program for men and women in Greenbrae, CA. who are struggling with serious drug or alcohol addiction problems. Whether inpatient or outpatient alcohol and drug abuse treatment services are chosen, there are also different amounts of time that people will be expected to stay in the drug rehab program. For example, some short-term programs provide services for a month or less, while long-term centers will call for at least a 12 week stay.