The various drug and alcohol abuse treatment programs which are available to alcohol and drug addicted individuals in Brentwood, Maryland can differ in many different ways. Quite a few substance abuse treatment services take place in a residential or inpatient location, where individuals reside for the duration of their rehabilitation which supplies a more conducive rehab setting. Others provide drug and alcohol abuse rehabilitation services on an outpatient basis which allows for more flexibility, although outpatient facilities are not always a suitable substance abuse rehab service for individuals in Brentwood, Maryland who are having difficulties with serious drug addiction difficulties. Whether or not inpatient or outpatient substance abuse rehab services are chosen, there are varying lengths of time that individuals will be required to continue to be in the drug and alcohol rehabilitation facility. For example, quite a few short-term programs offer programs for 30 days or less, whereas long-term programs will require at least a 90 day stay.