The various alcohol and drug abuse rehabilitation programs which are offered to drug and alcohol addicted persons in Havertown, Pennsylvania can differ in a lot of various ways. Some alcohol and drug abuse treatment services are offered in a residential or inpatient setting, where clients remain for the duration of their rehab which provides a more therapeutic treatment setting. Others offer drug and alcohol abuse rehab programs on an outpatient basis which allows for more versatility, though outpatient facilities may not be an appropriate substance abuse rehab program for individuals in Havertown, Pennsylvania who are having difficulties with serious drug or alcohol addiction issues. Whether or not inpatient or outpatient alcohol and drug abuse rehabilitation services are chosen, there are varying amounts of time that individuals will be expected to remain in the alcohol and drug treatment center. For instance, quite a few short-term programs offer programs for a month or less, whereas long-term centers will demand at least a 12 week stay.