The various substance abuse treatment services which are available to alcohol and drug addicted individuals in Hamilton can differ in many different ways. Some substance abuse rehabilitation programs are conducted in a residential or inpatient facility, where clientele remain for the duration of their rehabilitation which provides a more conducive rehabilitation environment. Others offer alcohol and drug abuse treatment services on an outpatient basis which provides a sense of flexibility, although outpatient facilities are not always a suitable drug and alcohol abuse rehabilitation service for men and women in Hamilton who are having difficulties with long term addiction issues. Whether inpatient or outpatient substance abuse rehab programs are selected, there are also different amounts of time that individuals will be required to continue to be in the alcohol and drug rehabilitation program. For example, many short-term programs offer programs for 4 weeks or less, while long-term centers will call for at least a 3 month stay.