The different alcohol and drug abuse rehab programs which are offered to drug and alcohol addicted persons in Trenton can differ in many different ways. Quite a few substance abuse treatment services take place in a residential or inpatient facility, where individuals remain the entire time they are in rehab which provides a more therapeutic treatment environment. Others provide alcohol and drug abuse rehab services on an outpatient basis which provides a sense of flexibility, although outpatient programs may not be a suitable drug and alcohol abuse treatment program for individuals in Trenton who are having difficulties with long term drug addiction issues. Whether inpatient or outpatient alcohol and drug abuse rehabilitation services are selected, there are varying lengths of time that men and women will be asked to stay in the drug rehab center. For example, many short-term programs offer services for 30 days or less, whereas long-term centers will demand at least a 12 week stay.