The various alcohol and drug abuse rehabilitation services which are available to alcohol and drug addicted people in Petrolia, PA. can differ in a lot of different ways. Quite a few substance abuse rehab services are conducted in a residential or inpatient location, where individuals reside for the duration of their rehab which provides a more conducive treatment environment. Others provide substance abuse treatment services on an outpatient basis which allows for more versatility, although outpatient facilities are not always a suitable drug and alcohol abuse rehabilitation program for individuals in Petrolia, PA. who are struggling with long term addiction difficulties. Regardless of whether inpatient or outpatient alcohol and drug abuse rehabilitation services are chosen, there are varying amounts of time that individuals will be required to stay in the drug and alcohol rehabilitation program. For instance, some short-term programs provide programs for a month or less, while long-term programs will call for at least a 90 day stay.