The different alcohol and drug abuse treatment services which are offered to drug addicted persons in Chatham, Virginia can vary in many different ways. Some substance abuse rehab services are conducted in a residential or inpatient facility, where individuals remain the entire time they are in rehab which offers a more therapeutic rehab setting. Others offer alcohol and drug abuse rehab programs on an outpatient basis which allows for more flexibility, although outpatient programs may not be an appropriate substance abuse rehabilitation program for men and women in Chatham, Virginia who are struggling with serious drug or alcohol addiction issues. Regardless of whether inpatient or outpatient substance abuse treatment services are selected, there are also different lengths of time that men and women will be required to remain in the drug and alcohol rehab program. For example, many short-term programs provide services for 4 weeks or less, whereas long-term programs will call for at least a 90 day stay.