The different drug and alcohol abuse rehabilitation services which are offered to drug and alcohol addicted persons in Chatham can vary in many various ways. Quite a few alcohol and drug abuse rehabilitation services take place in a residential or inpatient facility, where clientele reside for the duration of their rehab which offers a more conducive rehabilitation environment. Others offer drug and alcohol abuse rehab services on an outpatient basis which allows for more flexibility, though outpatient programs are not always an appropriate drug and alcohol abuse treatment service for people in Chatham who are having difficulties with serious addiction problems. Whether inpatient or outpatient drug and alcohol abuse treatment services are chosen, there are also different lengths of time that individuals will be expected to continue to be in the drug rehab facility. For instance, quite a few short-term programs provide programs for 30 days or less, while long-term programs will require at least a 90 day stay.