The various drug and alcohol abuse rehab programs which are available to drug and alcohol addicted people in Shirley can vary in several different ways. Some drug and alcohol abuse treatment services take place in a residential or inpatient setting, where clients reside for the duration of their rehabilitation which supplies a more therapeutic rehabilitation environment. Others offer substance abuse rehabilitation programs on an outpatient basis which allows for more flexibility, though outpatient facilities are not always a suitable drug and alcohol abuse rehabilitation service for individuals in Shirley who are struggling with serious drug addiction difficulties. Regardless of whether inpatient or outpatient substance abuse rehabilitation services are chosen, there are varying amounts of time that individuals will be required to remain in the drug and alcohol rehab facility. For instance, some short-term programs provide programs for 30 days or less, while long-term centers will require at least a 90 day stay.