The different drug and alcohol abuse rehabilitation services which are accessible to drug and alcohol addicted individuals in Penn Valley, California can differ in many different ways. Quite a few substance abuse rehab programs are offered in a residential or inpatient location, where clients reside the entire time they are in rehab which supplies a more therapeutic rehabilitation environment. Others offer alcohol and drug abuse rehabilitation services on an outpatient basis which provides a sense of flexibility, although outpatient facilities may not be an appropriate drug and alcohol abuse rehabilitation program for individuals in Penn Valley who are struggling with serious drug or alcohol addiction issues. Whether or not inpatient or outpatient drug and alcohol abuse treatment services are selected, there are varying amounts of time that people will be asked to continue to be in the drug and alcohol rehab program. For instance, many short-term programs provide services for 30 days or less, whereas long-term centers will require at least a 3 month stay.