The various alcohol and drug abuse rehabilitation programs which are accessible to drug addicted persons in Lackland can differ in several various ways. Quite a few drug and alcohol abuse rehab services take place in a residential or inpatient facility, where clientele remain the entire time they are in rehab which offers a more therapeutic treatment environment. Others provide alcohol and drug abuse treatment programs on an outpatient basis which allows for more versatility, although outpatient centers may not be a suitable alcohol and drug abuse treatment service for people in Lackland who are having difficulties with serious drug or alcohol addiction issues. Whether inpatient or outpatient substance abuse rehabilitation services are chosen, there are varying lengths of time that men and women will be expected to continue to be in the alcohol and drug rehabilitation center. For instance, many short-term programs offer programs for 30 days or less, while long-term centers will require at least a 90 day stay.