The different drug and alcohol abuse rehab services which are available to drug addicted persons in Centre can differ in a lot of different ways. Some substance abuse treatment programs are offered in a residential or inpatient facility, where clients reside the entire time they are in treatment which provides a more conducive treatment environment. Others offer alcohol and drug abuse rehabilitation programs on an outpatient basis which allows for more versatility, although outpatient programs are not always an appropriate alcohol and drug abuse rehab service for people in Centre who are having difficulties with long term drug or alcohol addiction issues. Whether or not inpatient or outpatient alcohol and drug abuse treatment programs are chosen, there are varying amounts of time that individuals will be required to remain in the alcohol and drug rehab program. For example, many short-term programs provide services for 4 weeks or less, while long-term facilities will call for at least a 90 day stay.