The diverse substance abuse rehab services which are offered to drug and alcohol addicted individuals in Oakland, Maryland can differ in several different ways. Quite a few substance abuse treatment programs are conducted in a residential or inpatient facility, where individuals reside for the duration of their rehabilitation which provides a more conducive treatment setting. Others offer alcohol and drug abuse rehab programs on an outpatient basis which allows for more flexibility, though outpatient programs may not be an appropriate drug and alcohol abuse treatment service for men and women in Oakland, Maryland who are having difficulties with serious drug or alcohol addiction problems. Whether or not inpatient or outpatient alcohol and drug abuse rehabilitation programs are selected, there are also different amounts of time that people will be expected to stay in the drug rehabilitation center. For example, some short-term programs provide services for a month or less, while long-term facilities will require at least a 90 day stay.