The diverse substance abuse treatment programs which are offered to drug addicted persons in Clayton, California can vary in a lot of various ways. Quite a few substance abuse rehab services take place in a residential or inpatient location, where individuals reside the entire time they are in rehabilitation which provides a more conducive treatment environment. Others provide alcohol and drug abuse rehab programs on an outpatient basis which provides a sense of flexibility, though outpatient facilities are not always an appropriate alcohol and drug abuse rehab program for men and women in Clayton who are having difficulties with long term drug or alcohol addiction issues. Whether inpatient or outpatient substance abuse rehabilitation programs are chosen, there are varying lengths of time that people will be expected to continue to be in the alcohol and drug rehabilitation facility. For instance, many short-term programs provide programs for a month or less, whereas long-term facilities will require at least a 90 day stay.