The various drug and alcohol abuse rehabilitation programs which are accessible to drug addicted persons in Petaluma, CA. can vary in several various ways. Quite a few drug and alcohol abuse rehabilitation services are offered in a residential or inpatient setting, where individuals reside the entire time they are in rehabilitation which provides a more therapeutic rehab environment. Others provide substance abuse rehabilitation programs on an outpatient basis which allows for more versatility, although outpatient facilities may not be an appropriate alcohol and drug abuse rehabilitation service for men and women in Petaluma, California who are struggling with serious addiction difficulties. Whether inpatient or outpatient drug and alcohol abuse rehabilitation services are chosen, there are varying amounts of time that individuals will be required to continue to be in the alcohol and drug rehab facility. For example, many short-term programs provide services for 4 weeks or less, while long-term programs will demand at least a 3 month stay.