The different substance abuse rehabilitation services which are accessible to drug addicted people in Annapolis, California can differ in many different ways. Some alcohol and drug abuse treatment services are offered in a residential or inpatient setting, where clients reside the entire time they are in treatment which offers a more conducive treatment setting. Others offer alcohol and drug abuse treatment programs on an outpatient basis which allows for more flexibility, although outpatient facilities may not be an appropriate drug and alcohol abuse rehab service for individuals in Annapolis who are struggling with long term drug or alcohol addiction problems. Whether inpatient or outpatient alcohol and drug abuse rehabilitation programs are chosen, there are varying amounts of time that individuals will be expected to remain in the alcohol and drug rehabilitation center. For instance, some short-term programs offer programs for a month or less, whereas long-term centers will call for at least a 12 week stay.