The various alcohol and drug abuse rehab services which are offered to drug and alcohol addicted individuals in Walnut can differ in several different ways. Quite a few alcohol and drug abuse rehabilitation services are conducted in a residential or inpatient facility, where clientele reside for the duration of their rehab which supplies a more conducive treatment setting. Others provide substance abuse rehab programs on an outpatient basis which provides a sense of versatility, although outpatient facilities may not be an appropriate alcohol and drug abuse rehab service for people in Walnut who are having difficulties with serious drug or alcohol addiction problems. Whether inpatient or outpatient substance abuse treatment services are chosen, there are varying lengths of time that men and women will be expected to stay in the drug treatment facility. For example, some short-term programs provide services for 30 days or less, whereas long-term facilities will require at least a 90 day stay.