The diverse alcohol and drug abuse treatment programs which are offered to alcohol and drug addicted individuals in Greenwood can vary in several various ways. Some substance abuse rehab services are offered in a residential or inpatient location, where individuals remain the entire time they are in rehab which supplies a more therapeutic treatment environment. Others offer substance abuse rehabilitation services on an outpatient basis which provides a sense of flexibility, though outpatient facilities may not be an appropriate substance abuse rehab program for individuals in Greenwood who are struggling with long term drug or alcohol addiction problems. Regardless of whether inpatient or outpatient drug and alcohol abuse rehabilitation services are chosen, there are also different amounts of time that individuals will be asked to continue to be in the drug and alcohol rehabilitation program. For example, some short-term programs provide programs for 30 days or less, whereas long-term centers will demand at least a 3 month stay.