The different alcohol and drug abuse rehabilitation programs which are accessible to alcohol and drug addicted persons in Williamsport, MD. can differ in several various ways. Some drug and alcohol abuse treatment services are offered in a residential or inpatient setting, where individuals remain the entire time they are in rehabilitation which supplies a more conducive rehab environment. Others provide substance abuse rehabilitation programs on an outpatient basis which allows for more flexibility, although outpatient centers may not be a suitable alcohol and drug abuse rehabilitation service for men and women in Williamsport, MD. who are struggling with long term drug addiction issues. Whether or not inpatient or outpatient drug and alcohol abuse rehabilitation services are chosen, there are also different lengths of time that people will be asked to continue to be in the alcohol and drug treatment program. For example, some short-term programs offer services for a month or less, while long-term programs will require at least a 3 month stay.